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Journal articles on the topic 'Cleaning ratio'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Yu, Pi Chun, Cheng Kuen Chen, Jin Lang Lin, Chih Ning Wu, and Hiroshi Matsuo. "High Aspect Ratio Contact Clean Study in 58nm Flash Device." Solid State Phenomena 145-146 (January 2009): 35–38. http://dx.doi.org/10.4028/www.scientific.net/ssp.145-146.35.

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In the conventional wet cleaning process of contact holes landing on the Si substrate and WSi metal gate, the ILD BPTEOS bowing and CD enlargement were often found by using dilute HF solution. With the device design rule decreasing, the CD size control and cleaning efficiency enhancement are highly demanded. In this work, the high aspect-ratio contact (AR~10) cleaning in single wafer (SW) tool was demonstrated in 58nm flash device. With the facilitation of nano-spray function to enhance particle removal efficiency (PRE), AM1 cleaning in SW tool can achieve the low contact resistance and tighte

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Zhang, Ning, Jun Fu, Zhi Chen, Xuegeng Chen, and Luquan Ren. "Optimization of the Process Parameters of an Air-Screen Cleaning System for Frozen Corn Based on the Response Surface Method." Agriculture 11, no. 8 (2021): 794. http://dx.doi.org/10.3390/agriculture11080794.

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The threshing of frozen corn is accompanied by breakage and adherence, which influence the cleaning performance when the corn-cleaning mixture is separated and cleaned. In order to reduce the impurity ratio and loss ratio during frozen corn cleaning and provide theoretical support for frozen corn combine harvesting, this study employed a self-made air-screen cleaning system with adjustable parameters. The optimal process parameters of frozen corn cleaning were determined by using the response surface method (RSM). The influences of the fan speed (FS), vibrational frequency (VF), and screen ope

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Han, Yan Fang, Ti Chang Sun, Jie Li, Li Na Wang, Tian Yan Xue, and Tao Qi. "Removing of Si in the NaOH Molten Salt Reaction of Titanium Slag to Produce TiO₂." Advanced Materials Research 418-420 (December 2011): 387–92. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.387.

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NaOH solution was utilized in the molten salt reaction of titanium slag for investigating desiliconization effects. The thermodynamic behaviors of Si in the reaction system was examined to explore the impacts of molten salt reaction conditions on the conversion rates of the foreign substance Si and the target element Ti. On this basis, the influences of NaOH concentration, liquid-solid ratio, cleaning temperature and cleaning time on Si removing rate were discussed. The experimental results showed that, Si reacted with NaOH to produce sodium silicate was feasible in terms of thermodynamics wit

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Garnier, Philippe, and Hervé Fontaine. "Metal Removal Efficiency in High Aspect Ratio Structures." Solid State Phenomena 255 (September 2016): 313–18. http://dx.doi.org/10.4028/www.scientific.net/ssp.255.313.

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An extremely low level of metal contamination is required for specific devices like memories and CMOS Image sensors. Most of past work in the literature has focused on blanket wafer decontamination, since metrology is mostly adapted to flat surfaces. Metal removal efficiency has been compared between blanket wafers versus high aspect ratio deep trenches wafers. Two different metrology technics enable a quantitative and spatial metal removal determination on patterned wafers. Efficient cleaning in high aspect ratio structures requires much longer cleaning recipes than on flat surfaces.

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Boulais, Denis. "Sex Offspring Ratio and Radiofrequency Radiation Exposure." Journal of System Safety 53, no. 1 (2017): 35–38. http://dx.doi.org/10.56094/jss.v53i1.100.

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Radiofrequency (RF) radiation is a silent and invisible hazard for both high-access window cleaners and telecommunications riggers that can heat body tissue, resulting in injury. In this study, a total of 68 high-access window cleaners were interviewed to establish their sex offspring ratio. Results indicated that there was no significant variance to that of the general Australian population. The high-access window cleaning industry has a lower awareness of this hazard than the telecommunications industry. This study compares and contrasts its outcomes against a similar study within the

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Kim, Myeongjun, Philgong Choi, Jae Heung Jo, and Kyunghan Kim. "Glass Substrate Dust Removal Using 233 fs Laser-Generated Shockwave." Micromachines 12, no. 11 (2021): 1382. http://dx.doi.org/10.3390/mi12111382.

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Eliminating dust is gaining importance as a critical requirement in the display panel manufacturing process. The pixel resolution of display panels is increasing rapidly, which means that even small dust particles on the order of a few micrometers can affect them. Conventional surface cleaning methods such as ultrasonic cleaning (USC), CO2 cleaning, and wet cleaning may not be sufficiently efficient, economical, or environment friendly. In this study, a laser shockwave cleaning (LSC) method with a 233 fs pulsed laser was developed, which is different from the laser ablation cleaning method. To

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Noh, Kwang-Chul, and Myung-Do Oh. "Variation of clean air delivery rate and effective air cleaning ratio of room air cleaning devices." Building and Environment 84 (January 2015): 44–49. http://dx.doi.org/10.1016/j.buildenv.2014.10.031.

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8

Ding, Bochuan, Zhenwei Liang, Yongqi Qi, Zhikang Ye, and Jiahao Zhou. "Improving Cleaning Performance of Rice Combine Harvesters by DEM–CFD Coupling Technology." Agriculture 12, no. 9 (2022): 1457. http://dx.doi.org/10.3390/agriculture12091457.

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The cleaning device is an important part of combine harvesters, as its superior or inferior performance directly affects the performance of the combine harvester greatly. With an increasing rice yield, the current single-duct cleaning performance declines greatly, and causes a large grain sieve loss level and a direct grain loss for the farms. To optimize the existing single-duct cleaning device to meet the large feeding rate requirement, firstly, the terminal velocity of rice grain and MOG (material other than grain) for different varieties was experimentally measured by the custom-made devic

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WANG, Bowen, Longxi ZHENG, Yue CHENG, Chao WANG, Qing LI, and Jie LU. "Study on the influence of outlet diameter on the out-field pressure action characteristics of pulse detonation cleaning device." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 42, no. 3 (2024): 477–86. http://dx.doi.org/10.1051/jnwpu/20244230477.

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Pulse detonation cleaning technology is an efficient cleaning technology that is used inert shock waves generated by decoupling the detonation to remove ash and deposits. And it has great advantages in the field of furnace cleaning. In order to investigate the pressure distribution characteristics outside the detonation cleaning device and to explore the effect of the device outlet diameter on the pressure distribution characteristics, numerical simulations and experimental studies of pulse detonation cleaning device with using propane-air as the fuel has been carried out. The numerical simula

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10

Wiilknitz, P. "Cleaning Power and Abrasivity of European Toothpastes." Advances in Dental Research 11, no. 4 (1997): 576–79. http://dx.doi.org/10.1177/08959374970110042701.

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For 41 toothpastes available to European consumers in 1995, the cleaning efficacy was evaluated in comparison with abrasivity on dentin (RDA value). For cleaning power assessment, a modified pellicle cleaning ratio (PCR) measurement method was developed. The method is characterized by a five-day tea-staining procedure on bovine front teeth slabs on a rotating wheel, standardized brushing of the slabs in a V8 cross-brushing machine, and brightness measurement by a chromametric technique. All tested products were in accordance with the new DIN/ISO standard 11609 for toothpastes in terms of denti

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11

Zhang, Li Hua, Tao Tao Liu, and Guang Hui Li. "A Design of Ginkgo Cleaner." Applied Mechanics and Materials 397-400 (September 2013): 919–23. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.919.

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In order to solve the cleaning problem of ginkgo after husking, the author puts forward a design scheme of air-shaker cleaning device for ginkgo kernel and husk. The device consists of feed, fan, shaker and outlet. The parameters of shaker are determined: sieve motion direction angle is 8o, sieve angle of inclination is 20o, crank radius is 0.020m, crank rotational speed n is 320rmp. Test results show that the cleaner has steady transmission, low noise, stable performance and its productivity is 2.2t/h, loss ratio is 1.20%, cleaning ratio is 95.21%. It can meet the production requirements.

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Chen, Fuping, David Wei Zhang, Xiongfei Wei, et al. "(Digital Presentation) Research on Single Wafer RCA Clean in High Aspect Ratio Trenches." ECS Meeting Abstracts MA2022-01, no. 28 (2022): 1257. http://dx.doi.org/10.1149/ma2022-01281257mtgabs.

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I ntroduction. High aspect ratio (AR) processes are widely used in front end of line (FEOL) IC manufacturing. Figure 1 depicts high (AR) trench cleaning process. Polymerization residues produced during the dry etch process will cause many problems such as STI voids in the follow-up process if the residues are not removed. This can lead to lower yield and reduction of chip life[1]. It is difficult to completely clean the residue inside trench with aspect ratio greater than 10. As shown in Figure.2, poor wetting of the liquid in the high AR trench, prevents the cleaning of the whole trench. Typi

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Zuñiga-Cortes, Fabian, Juan D. Garcia-Racines, Eduardo Caicedo-Bravo, and Hernan Moncada-Vega. "Minimization of Economic Losses in Photovoltaic System Cleaning Schedules Based on a Novel Methodological Framework for Performance Ratio Forecast and Cost Analysis." Energies 16, no. 16 (2023): 6091. http://dx.doi.org/10.3390/en16166091.

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The growing interest in deploying photovoltaic systems and achieving their benefits as sustainable energy supplier raises the need to seek reliable medium-term and long-term operations with optimal performance and efficient use of economic resources. Cleaning scheduling is one of the activities that can positively impact performance. This work proposes a methodological framework to define the optimal scheduling of the cleaning activities of photovoltaic systems. The framework integrates a forecast model of the performance ratio, including the environmental variables’ effect. In addition, an ec

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Qiu, Qian Sheng, Jing Xian Liu, De Qiang Chang, Ning Mao, and Xi Sun. "Study of Typical Filter Material on Dust Cleaning." Applied Mechanics and Materials 490-491 (January 2014): 58–63. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.58.

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filter get peoples attention increasingly as it has become the core of dust bag. In this paper, cleaning process residual resistance and peel rate of dust cleaning cycle were studied. Experimental results show that the initial resistance of the filter were close to the filters, polyester dust filter has a high cleaning strip ratio and a larger interval.

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15

Гиевский, Aleksey Gievskiy, Чернышов, Aleksey Chernyshov, Оробинский, and Vladimir Orobinskiy. "Justification of allocation scheme and the ratio of sieves in screen shoes." Forestry Engineering Journal 3, no. 3 (2013): 126–33. http://dx.doi.org/10.12737/1776.

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The results of the feasibility studies of allocation scheme of sieves in the screen shoe to improve performance are given. Inves-tigations were carried out in a pilot plant consisting of two-aspiration pneumatic sys-tem and screen shoe with a ball-cleaning of sieves, controlled vibration frequency and location in one tier of up to three sieves with a length of 0.99 m. Permissible unit stress were obtained for grains and sorting sieve for cleaning piles of winter wheat at the mill vibration amplitude of 0.03 m in and a frequency of 350 min-1.

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White, Nicole M., Adrian G. Barnett, Lisa Hall, et al. "Cost-effectiveness of an Environmental Cleaning Bundle for Reducing Healthcare-associated Infections." Clinical Infectious Diseases 70, no. 12 (2019): 2461–68. http://dx.doi.org/10.1093/cid/ciz717.

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Abstract Background Healthcare-associated infections (HAIs) remain a significant patient safety issue, with point prevalence estimates being ~5% in high-income countries. In 2016–2017, the Researching Effective Approaches to Cleaning in Hospitals (REACH) study implemented an environmental cleaning bundle targeting communication, staff training, improved cleaning technique, product use, and audit of frequent touch-point cleaning. This study evaluates the cost-effectiveness of the environmental cleaning bundle for reducing the incidence of HAIs. Methods A stepped-wedge, cluster-randomized trial

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17

Xu, Xiu Mei, Guy Vereecke, Erik van den Hoogen, et al. "Wetting Challenges in Cleaning of High Aspect Ratio Nano-Structures." Solid State Phenomena 195 (December 2012): 235–38. http://dx.doi.org/10.4028/www.scientific.net/ssp.195.235.

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In semiconductor fabrication, pattern collapse of high aspect ratio structures after wet processing has been a critical issue and attracted a lot of interest. On the other hand, very little attention is spent on the potential wetting issues as feature dimensions are continuously scaled down and novel materials with different wetting properties are used in new technology nodes. In this work we investigate the wettability of nanopatterned silicon substrates with different surface modifications.

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18

Setiawan, Riza Yuliratno, Anindya Wirasatriya, Hasrizal Bin Shaari, Eko Setyobudi, and Faizal Rachman. "Assessing the Reliability of Planktic Foraminifera Ba/Ca as a Proxy for Salinity off the Sunda Strait." ILMU KELAUTAN: Indonesian Journal of Marine Sciences 22, no. 4 (2017): 201. http://dx.doi.org/10.14710/ik.ijms.22.4.201-212.

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The Ba/Ca ratio of planktic foraminifera carbonate serves as a new geochemical proxy for seawater Ba/Ca and thus providing information on modern and past salinity and freshwater discharge. In this study the applicability of Ba/Ca ratio of core-top Globigerinoides sacculifer collected off the eastern tropical Indian Ocean (ETIO) for paleoceanographic reconstructions was investigated. In doing so, we conducted a series of cleaning experiments for Ba/Ca extraction by using different reductive solutions. Our new results suggest that the Ba/Ca ratio of G. sacculifer cannot be utilized as a tracer f

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19

Rahmat, Abdul, Rita Yunus, Yunus Sading, Santi Yunus, Andi Herman Jaya, and Meyti Ferdiana Paskual. "Service Business Revenue Analysis: Empirical Study on SME Sini Sa Clean." Golden Ratio of Data in Summary 4, no. 1 (2024): 51–58. http://dx.doi.org/10.52970/grdis.v4i1.508.

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Small and Medium Enterprises, abbreviated as SMEs, play an important role in enhancing the economic growth of a country. They function to increase local income by meeting the community's needs for products and providing job opportunities. Sini sa Clean is one of the SMEs operating in the cleaning services sector in the city of Palu. Sini sa Clean offers room cleaning services, mattress cleaning, and sofa cleaning. This research aims to analyze the income and business feasibility of Sini sa Clean. The data analysis method used is the income analysis formula consisting of Total Cost (TC), Total

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20

Votta, Annamaria, Francesco Pipia, S. Borsari, et al. "Influence of Wet Cleaning on Tungsten Deposited with Different Techniques." Solid State Phenomena 145-146 (January 2009): 197–200. http://dx.doi.org/10.4028/www.scientific.net/ssp.145-146.197.

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Tungsten is a metal widely used for interconnections. As a consequence of more stringent requirements in terms of aspect ratio deriving from device shrinking, the filling of W plugs is becoming more and more critical and new deposition techniques need to be employed to properly fill contacts and trenches. For example ALD nucleation layers need to be coupled to CVD deposition. Since physical-chemical properties of W are heavily influenced by deposition techniques, the effect of wet cleanings on different kind of W needs to be fully understood in order to avoid any kind of W corrosion or recessi

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21

Liang, Zhenwei, Jun Li, Jianmin Liang, et al. "Investigation into Experimental and DEM Simulation of Guide Blade Optimum Arrangement in Multi-Rotor Combine Harvesters." Agriculture 12, no. 3 (2022): 435. http://dx.doi.org/10.3390/agriculture12030435.

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The cleaning performance of the cleaning shoe of a multi-rotor combine harvester has proven to be poor owing to the threshed output entering the cleaning section in an uneven manner. Experimental results indicated that the arrangement of the guide blades on the return plate surface has a significant effect on the threshed output distribution. In this paper, DEM (discrete element method) simulations were carried out in the EDEM software to examine the effect of the height of the guide blade, the installation angle, and the number of guide blades on threshed output distribution before entering t

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Sui, Xiao Nan, Lian Zhou Jiang, Yang Li, and Wen Liu. "Antioxidant Activity of Soybean Peptides." Advanced Materials Research 233-235 (May 2011): 854–65. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.854.

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This experiment contrasted the hydrolytic effect of SPI among the six different proteolytic ferments and the Alcalase basic protein which can produce the best antioxygen peptide, the optimization technology condition of hydrolytic SPI determined by orthogonally experimentation: concentration of substrate 7.0%, the dozes of enzyme 9000U/g substrate, temperature 52.5°C, pH 8.5, the reaction time 5h. The antioxygen activity of hydrolysis product is researched from the capability of cleaning OH·, the capability of cleaning O2-· and the capability of inhibiting ROO·. After hydrolyze of 5h, the OH·

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Wan, XingYu, QingXi Liao, Yang Xu, JiaCheng Yuan, and HaiTong Li. "Design and Evaluation of Cyclone Separation Cleaning Devices Using a Conical Sieve for Rape Combine Harvesters." Applied Engineering in Agriculture 34, no. 4 (2018): 677–86. http://dx.doi.org/10.13031/aea.12502.

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Abstract. Cyclone separation cleaning devices and a conical sieve for a rape combine harvester were designed to address problems of vibration and the complexity of conventional combine harvesters with vibration sieves. The cyclone separation cleaning devices consisted of a blower, cyclone separator, pipe, fan and other components. The working processes were examined and an innovative mechanical system was designed. Both single-factor and orthogonal experiments were carried out to obtain optimal parameter values. Based on the single-factor experiments, the proper rotational speed of the conical

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Asming, Nur Aziemah Adilah, Norashikin Ab Aziz, Nurfatimah Mohd Thani, and Nurul Izzah Khalid. "Optimization of Cleaning-In-Place (CIP) Procedure of Milk Fouling Deposit Using Different Cleaning Parameters." Journal of Biochemistry, Microbiology and Biotechnology 12, SP1 (2024): 61–64. http://dx.doi.org/10.54987/jobimb.v12isp1.944.

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Cleaning-in-place (CIP) is a critical process across various industries, particularly in the food industry, where maintaining sanitation without equipment disassembly is imperative. However, challenges such as cross-contamination and escalating sanitation costs may arise when protocols are not diligently followed. This research focuses on optimizing the CIP techniques to mitigate milk fouling deposits in the dairy industry by strategically manipulating cleaning parameters. A physical model using raw milk to simulate industrial scenarios was prepared, followed by laboratory-scale sanitation exp

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Kim, Tae-Gon, Donggyu Kim, G. Kim, and Jingoo Park. "(Invited) Characterization of Wetting Behavior on High Aspect Ratio Multilayer Structure." ECS Meeting Abstracts MA2022-01, no. 28 (2022): 1256. http://dx.doi.org/10.1149/ma2022-01281256mtgabs.

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The miniaturization and complexity of semiconductor structures increase to improve device performance and functionality. In particular, the latest high-performance semiconductor architectures are formed of high-aspect-ratio structures composed of multilayer thin films. In the case of logic devices, it is reported that the gate-all-around(GAA) structure will become the mainstream, and in the 3D NAND flash memory, it will have a structure with more than 168 layers and a high aspect ratio of 50 or more. In order to form such a structure, the manufacturing process becomes complicated and various c

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Feng, Yan Wen. "Research on Self-Cleaning Organic Ti-Si Compound Material." Applied Mechanics and Materials 184-185 (June 2012): 1181–84. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.1181.

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This study applies the principle of silane coupling agent (SG-Si900) of alkane chain steric hindrance effect ,using SG-Si900, tetrabutyl titanate and TEOS as the main raw materials synthesizes self-cleaning organic Ti-Si compound materials by hydrolysis, constant temperature polycondensation and distillation. To improve the comprehensive performance, we can adjust the synthesis temperature and some main reaction parameters, such as H2O/Si, SG-Si900/TEOS, Si/Ti. The experiment proves that the best preparation conditions of compound materials is at the synthesis temperature of 80°C, the ratio of

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Sun, Xiaofeng, Liang Tao, Yuanzhe Zhao, Jingyu Qu, Di Yao, and Zijian Li. "Numerical Simulation of Hole Cleaning of a Horizontal Wellbore Model with Breakout Enlargement Section." Mathematics 11, no. 14 (2023): 3070. http://dx.doi.org/10.3390/math11143070.

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Horizontal wells are more likely than vertical wells to have enlarged wellbore sections due to borehole instability. However, there is scarce research on borehole cleaning of horizontal wells with enlarged wellbore sections. In this paper, we establish a horizontal wellbore model with a breakout enlargement section using field borehole diameter data. We used the three-dimensional computational fluid dynamics (CFD) method and the Realizable k-ε turbulence model with the Euler–Euler approach to simulate the effects of the drilling fluid circulation return speed and the spinning speed of the dril

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Chen, Yang Yi, Qi Zhong, Tao Chen, and Ji Ping Wang. "Fabrication and Characterization of Cotton Fabrics with Grafted Thermo-Responsive Random Copolymer Poly(2-(2-methoxyethoxy) Ethoxyethyl Methacrylate-co-Acrylic Acid)." Key Engineering Materials 671 (November 2015): 231–36. http://dx.doi.org/10.4028/www.scientific.net/kem.671.231.

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The cotton fabrics with enhanced cleaning capability were prepared by grafting thermo-responsive random copolymer poly (2-(2-methoxyethoxy) ethoxyethyl methacrylate-co-acrylic acid), abbreviated as P(MEO2MA-co-AA), to the amino modified cotton fabrics. ATR-FTIR measurement confirmed the immobilization of P(MEO2MA-co-AA) to the cotton fabrics. Equilibrium swelling ratio indicates that the cotton fabric with grafted P(MEO2MA-co-AA) possesses thermo-responsive ability .The enhanced cleaning capability was investigated by the decontamination experiments probed with confocal microscope. The results

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Мamatova, Dilrabo, Muhammad Ali Turgunov, Igor Tyurin, and Abdumutal Nabiyev. "A novel cotton cleaning section design with innovative branched gears." BIO Web of Conferences 116 (2024): 01001. http://dx.doi.org/10.1051/bioconf/202411601001.

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The purpose is to create an effective design diagram for a small trash cotton cleaning machine and an improved diagram of the drive mechanism of a large and small trash cotton cleaning machine. The results of comprehensive experiments on the design of a cleaning machine with a new drive mechanism arrangement are presented. This article presents the results of production testing of the proposed design of a cotton filter with a new drive mechanism arrangement, including a variable gear ratio (VGR) belt drive. Comparative indicators are presented regarding batch cotton cleaning machines. Producti

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Goodman, Eric R., Richard Piatt, Richard Bass, Andrew B. Onderdonk, Deborah S. Yokoe, and Susan S. Huang. "Impact of an Environmental Cleaning Intervention on the Presence of Methicillin-Resistant Staphylococcus aureus and Vancomycin-Resistant Enterococci on Surfaces in Intensive Care Unit Rooms." Infection Control & Hospital Epidemiology 29, no. 7 (2008): 593–99. http://dx.doi.org/10.1086/588566.

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Objectives.To evaluate the adequacy of discharge room cleaning and the impact of a cleaning intervention on the presence of methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE) on environmental surfaces in intensive care unit (ICU) rooms.Design.Prospective environmental study.Setting and sample.Convenience sample of ICU rooms in an academic hospital.Methods and intervention.The intervention consisted of (1) a change from the use of pour bottles to bucket immersion for applying disinfectant to cleaning cloths, (2) an educational campaign, and (3) feedbac

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Han, Chun, Lei Zhao, Manying Zhang, Lin Pan, and Zhifeng Liu. "Synthesis and Self-Cleaning Property of TiO2 Thin Film Doping with Fe3+, Al3+, Ce3+ Ions." Journal of Nanoscience and Nanotechnology 20, no. 7 (2020): 4084–91. http://dx.doi.org/10.1166/jnn.2020.17691.

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Enhancing the response to visible light and inhibiting recombination of photogenerated electrons and holes is a key point for strongly improved self-cleaning performances of TiO2 self-cleaning films. In this work, TiO2 thin film doping with three different ions (Fe3+, Al3+, Ce3+) on glass substrate respectively by sol–gel method to explore the effect of ions on self-cleaning performance of TiO2 thin films. All the prepared samples are characterized by XRD, SEM, UV-Vis and water contact angle tester. Moreover, the self-cleaning mechanism of doping TiO2 thin film is discussed. The water contact

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Wu, Qiang, Chang Ping Zhu, Cheng Yao, et al. "Ultrasonic Cleaning Device with Adjustable Power for Submerged Structure." Applied Mechanics and Materials 578-579 (July 2014): 1087–91. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.1087.

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In order to meet the demand of video detection and fast repair of cracks on large submerged structure in different depths, this paper designed an ultrasonic cleaning device with adjustable power. A hydraulic pressure sensor collects the pressure signal in the place to be detected in real time and then sends it to the MCU to deal with. This device will adjust the duty ratio of ultrasonic signal synchronously according to different signal of depth, while making the ultrasonic cleaning head work under the rated output power, so as to avoid the surface damage of building material and achieve the b

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Sebaai, Farid, Guy Vereecke, Xiu Mei Xu, et al. "Cleaning of High Aspect Ratio STI Structures for Advanced Logic Devices by Implementation of a Surface Modification Drying Technique." Solid State Phenomena 282 (August 2018): 190–93. http://dx.doi.org/10.4028/www.scientific.net/ssp.282.190.

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The continuous down scaling of the dimensions for the logic devices has imposed to carefully track the pattern collapse issue when cleaning after FIN etch. Showing the limitations of the hot IPA drying technique toward scaled FIN dimensions, a cleaning using a surface modification drying technique has been proposed and successfully implemented. It is also discussed the use of some post treatment solutions to remove the grafted layer used to modify the FIN surface while preserving the integrity of the FIN structures.

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Salman Alunazi, Naemah, Dalal Feheid Alunazi, and Abeer Ali Alshalali. "IMPACT OF ENVIRONMENTAL CLEANING AND DISINFECTION PRACTICES ON INFECTION CONTROL OUTCOMES IN SAUDI ARABIAN HEALTHCARE SETTINGS: A SYSTEMATIC REVIEW AND META-ANALYSIS." International Journal of Advanced Research 11, no. 07 (2023): 1129–39. http://dx.doi.org/10.21474/ijar01/17325.

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Objective: This systematic review and meta-analysis aimed to assess the impact of environmental cleaning and disinfection practices on infection control outcomes in Saudi Arabian healthcare settings. Methods: A comprehensive search was conducted across multiple databases to identify relevant studies. After screening, a total of 50 studies were included in the meta-analysis. The pooled effect estimate was calculated using the odds ratio (OR) as the effect measure, and a random-effects model was employed to account for heterogeneity among the studies. Results: The meta-analysis revealed a signif

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H, Trabelsi. "Data Analytics and Development of a Wellbore Cleaning Coefficient Model." Petroleum & Petrochemical Engineering Journal 7, no. 4 (2023): 1–14. http://dx.doi.org/10.23880/ppej-16000373.

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In this study, wellbore cleaning coefficient (WCC) correlations were developed for three conventional coiled tubing sizes (2.375”, 2.625”, and 2.875”). These sizes correspond to roughness to internal (ε/D) ratios of 0.000460828, 0.000510637, and 0.000572517, respectively. Dimensional analysis, applying the Buckingham-π theorem and a database from 150 wells in the Spraberry formation in West Texas, was used. Key performance indicators (KPIs) that influence flow in a cased pipe around an object (coil tubing) were identified and employed in model development. These KPIs are (1) slick water densit

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Purbasari, Annisa, and Ahmad Salim. "PENILAIAN EFEKTIVITAS PADA MESIN DAICH DENGAN METODE OVERALL EQUIPMENT EFFECTIVENES (OEE) DI PT UB." PROFISIENSI: Jurnal Program Studi Teknik Industri 9, no. 2 (2021): 271–80. http://dx.doi.org/10.33373/profis.v9i2.3681.

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PT. UB is a company in Indonesia engaged in the electronics manufacturing industry that produces IC products. The company seeks to improve the performance of its engines through improved production processes. One of the production machines that have high performance is the DAICHI machine in the cleaning process. However, the performance of a DAICHI machine can be hampered if it experiences downtime, damage or does not work effectively. This research aims to assess the effectiveness of DAICHI machines in the cleaning process with oee methods. The results of this study showed that the availabili

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Garnier, Philippe, and Hugo Galbes. "(Invited) Particles Removal on Challenging Surfaces." ECS Transactions 114, no. 1 (2024): 61–72. http://dx.doi.org/10.1149/11401.0061ecst.

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In semiconductor manufacturing, particle removal is critical for high yield. This study investigates cleaning efficiency on challenging surfaces like deep trenches, wafer bevel, and bonded dies, using various methods. Intentional contamination was applied using silica, silicon nitride, and ceria particles. Cleaning methods tested include high-velocity biphasic sprays, cryogenic processes, and polymer peel techniques. Results show that while polymer peeling offers excellent particle removal efficiency (PRE) on blanket surfaces and wafer bevels, it struggles with high aspect ratio features due t

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Chaffee, B. W., D. Persai, and M. V. Vora. "Interdental Cleaning and Oral Health Status in an Adult Cohort, 2015 to 2018." Journal of Dental Research 99, no. 10 (2020): 1150–56. http://dx.doi.org/10.1177/0022034520926139.

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Interdental cleaning is routinely recommended, despite limited evidence supporting efficacy to prevent advanced oral disease endpoints, such as caries and periodontal disease. We aimed to examine associations between interdental cleaning and oral health in a large, generalizable prospective cohort of adults in the United States. Data were drawn from wave 3 (2015 to 2016, n = 26,086 included in analysis) and wave 4 (2016 to 2018, n = 22,585) of the adult component (age ≥18 y) of the nationally representative Population Assessment of Tobacco and Health Study. Survey-weighted multivariable regres

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Kim, Tae-Gon, Donggyu Kim, G. Kim, and Jingoo Park. "(Invited) Characterization of Wetting Behavior on High Aspect Ratio Multilayer Structure." ECS Transactions 108, no. 4 (2022): 131–36. http://dx.doi.org/10.1149/10804.0131ecst.

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The wetting behavior of solutions was successfully visualized in the high aspect ratio multi-stack trench pattern using the inclined-AFM methodology. The visualization allows the characterization of the wetting behavior of cleaning solutions on various hydrophobic surfaces. The experimental results agreed with the values calculated by the Wenzel & Cassie-Baxter model. The wetting characteristic analysis using inclined-AFM is an efficient method regardless of pattern dimensions.

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Volovetskyi, V. B., Ya V. Doroshenko, O. S. Tarayevs'kyy, O. M. Shchyrba, J. I. Doroshenko, and Yu S. Stakhmych. "Experimental effectiveness studies of the technology for cleaning the inner cavity of gas gathering pipelines." Journal of Achievements in Materials and Manufacturing Engineering 2, no. 105 (2021): 61–77. http://dx.doi.org/10.5604/01.3001.0015.0518.

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Purpose: The purposes of the article are to determine the hydraulic efficiency of two gas gathering pipelines of the Yuliivskyi oil and gas condensate production facility (OGCPF) and develop a set of measures to increase it; to experimentally determine the efficiency of using foams to increase the hydraulic characteristics of the gas gathering pipelines in the Yuliivskyi OGCPF; to develop a set of measures that will help to improve the hydraulic characteristics of gas gathering pipelines. Design/methodology/approach: The research methodology consists in determining the hydraulic efficiency of

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Li, Tian, Hongjian Yu, Jing Tian, et al. "PAC-UF Process Improving Surface Water Treatment: PAC Effects and Membrane Fouling Mechanism." Membranes 12, no. 5 (2022): 487. http://dx.doi.org/10.3390/membranes12050487.

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In this study, the water purification effect and membrane fouling mechanism of two powdered activated carbons (L carbon and S carbon) enhancing Polyvinylidene Fluoride (PVDF) ultrafiltration (UF) membranes for surface water treatment were investigated. The results indicated that PAC could effectively enhance membrane filtration performance. With PAC addition, organic removal was greatly enhanced compared with direct UF filtration, especially for small molecules, i.e., the S-UF had an additional 25% removal ratio of micro-molecule organics than the direct UF. The S carbon with the larger partic

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Mohammed, Mohammed O. A. "Surface Microbial Contamination and Air Quality before and after Regular Cleaning Procedures." Atmosphere 14, no. 2 (2023): 352. http://dx.doi.org/10.3390/atmos14020352.

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Studies on indoor air quality (IAQ) have linked exposure to microorganisms in indoor air to a variety of illnesses. The association between indoor air quality, surface contamination, and IAQ under heterogeneous cleaning procedures are all crucial factors that were investigated in this study. The ATP bioluminescence test demonstrated a significant correlation (r = 0.89; p 0.05) with bacterial count obtained from swab specimens and a moderate correlation (r = 0.57; p 0.001) with viable settling bacterial count. For the entire sample (pre- and post-cleaning), the ATP values were heterogeneous, av

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Coppola, Giovanni, and Davide Papurello. "Biogas Cleaning: Activated Carbon Regeneration for H2S Removal." Clean Technologies 1, no. 1 (2018): 40–57. http://dx.doi.org/10.3390/cleantechnol1010004.

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The coupling of fuel cell technology with wastewater treatment plants (WWTPs) is within the sustainable development imperative for the integration of energy production purposes and recovery of materials, even if research is still under development in this field. The anaerobic digestion process can be used for fuel cell feeding, only if trace contaminants are removed continuously. The most harmful and frequent contaminant is H2S. This article shows the results of H2S adsorption on activated carbon fixed-beds (dry process), since it is one of the best solutions from both the complexity and costs

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Gurera, Dev, and Bharat Bhushan. "Fabrication of bioinspired, self-cleaning, anti-icing, superliquiphilic/phobic titanium using different pathways." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377, no. 2138 (2018): 20180273. http://dx.doi.org/10.1098/rsta.2018.0273.

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Titanium is an important material having a high tensile strength-to-density ratio and high corrosion resistance. It has found applications in the aerospace, marine, automotive and biomedical industries. In some of the applications, it is important to have it as a highly liquid repellent, anti-icing and self-cleaning. There have been several attempts to make titanium superliquiphobic. The common pathways include chemical etching and anodizing. However, important characteristics such as self-cleaning, anti-icing and durability have not been investigated. If any durability data were reported, it

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Tang, Jian She, Brian J. Brown, Steven Verhaverbeke, et al. "Aqueous Based Single Wafer Cu/Low-k Cleaning Process Characterization and Integration into Dual Damascene Process Flow." Solid State Phenomena 103-104 (April 2005): 353–56. http://dx.doi.org/10.4028/www.scientific.net/ssp.103-104.353.

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As device features scale down to 90nm and Cu/low-k films are employed for back end interconnects, post etch and ash residue cleaning becomes increasingly challenging due to the higher aspect ratio of the features, tighter CD control requirements, sensitivity of the low-k films, and the requirement for high wet etch selectivity between CuxO and Cu. Traditional solvent based cleaning in wet benches has additional issues such as wafer cross-contamination and high disposal cost [1, 2]. We have developed a novel aqueous solution (AQ) based single wafer cleaning process to address these challenges.

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Bajaj, Rajeev, Ashavani Kumar, Erik Nelson, Yuyan Luo, and Paiman Karim. "(Invited) Brush Material and Design Considerations for Pcmp SiC Cleans." ECS Meeting Abstracts MA2025-01, no. 35 (2025): 1687. https://doi.org/10.1149/ma2025-01351687mtgabs.

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Chemical Mechanical Polishing (CMP) process is a key process in semiconductor wafer processing. New applications of CMP have created new opportunities for innovation in polish models to design new polish slurries and cleaning chemistries. As semiconductor applications drive need for substrates beyond silicon, there are new challenges with application of CMP to compound substrates such as silicon carbide. Chemical and Mechanical properties of silicon carbide make it very difficult to polish and clean efficiently. Typical silicon carbide slurries are composed of strong oxidizer such as potassium

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Toshmirzayev, Qodirjon, Baxromova G., and Mamanazarova Yu. "IMPROVEMENT OF THE REGENERATOR USED IN CLEANING COTTON FROM IMPURITIES." Journal of Science-Innovative Research in Uzbekistan 2, no. 11 (2024): 430–35. https://doi.org/10.5281/zenodo.14238117.

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The article presents the results of research work on the development of a new cotton regenerator for the extraction of cotton volatiles from waste cleaners. The main distinguishing features of the design and technological process of the new cotton regenerator for the extraction of cotton volatiles from waste cleaners are described.

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Liang, Zhenwei, Yaoming Li, and Lizhang Xu. "Grain Sieve Loss Fuzzy Control System in Rice Combine Harvesters." Applied Sciences 9, no. 1 (2018): 114. http://dx.doi.org/10.3390/app9010114.

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The main working parts of the cleaning device of a rice combine harvester can be controlled by an established control strategy in real time based on the monitored grain sieve loss. This is an efficient way to improve their cleaning adaptability, since as a consequence, the main working parameters of combine harvesters can automatically adapt to crop and environment changes, and the corresponding cleaning performance can be improved. To achieve the target of cleaning control based on the monitored grain sieve loss, a fuzzy control system was developed, which selected S7-1200 PLC as the main con

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Yong, Lawrence H. P., William K. S. Pao, and Fakhruldin M. Hashim. "Fill Removal in Wellbore Using Coiled Tubing." Applied Mechanics and Materials 393 (September 2013): 863–71. http://dx.doi.org/10.4028/www.scientific.net/amm.393.863.

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Coiled Tubing (CT) services are widely applied in oil field to remove fill from wellbore. Its function is to restore the productivity of oil and gas well since fill such as sand will regularly block the production line especially at the well bottom. Predicting the behaviors of cleaning fluid and particle transports during the CT cleanout is a major challenge because there are many variables which affect the cleaning operation resulting in loss of cleaning efficiency, waste of cleaning fluid and increase in cost of well services. The objective of this study is to perform detailed analyses of bo

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Khamuev, Victor, Stanislav Gerasimenko, and Mikhail Chaava. "Engineering design of technological parameters of separation of seed in the upward air flow of pneumatic sorting machines." E3S Web of Conferences 126 (2019): 00030. http://dx.doi.org/10.1051/e3sconf/201912600030.

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It was showed the results of the determination the optimal parameters of the narrowing partitions installed in pneumatic channels with a vertical up air flow for cleaning seeds. The installation narrowing partitions in pneumatic channels makes it possible to increase the productivity and efficiency for cleaning seeds from difficult–to–remove impurities by no less than 20%, while the optimal ratio of the width of the partitions and the depth of the pneumatic canal sections varies from 0.3 to 0.5.

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