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Journal articles on the topic 'Cleaning'

Author: Grafiati
Published: 4 June 2021
Last updated: 21 December 2024

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1

Gyonouchi, Yukio. "CleanLine―The Complete Fabric Cleaning." JAPAN TAPPI JOURNAL 73, no. 5 (2019): 425–29. http://dx.doi.org/10.2524/jtappij.73.425.

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2

Yang, Min, Bing Yang, Xin Zhang, Saisai Wu, Tao Yu, Hong Song, Fei Ren, Puchun He, and Yanhui Zhu. "Experimental Study of the Factors Influencing the Regeneration Performance of Reduced Graphite Oxide Filter Materials under Water Cleaning." Materials 16, no. 11 (May 28, 2023): 4033. http://dx.doi.org/10.3390/ma16114033.

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With the normalization of epidemic prevention and control, air filters are being used and replaced more frequently. How to efficiently utilize air filter materials and determining whether they have regenerative properties have become current research hotspots. This paper discusses the regeneration performance of reduced graphite oxide filter materials, which were studied in depth using water cleaning and the relevant parameters, including the cleaning times. The results showed that water cleaning was most effective using a 20 L/(s·m2) water flow velocity with a 17 s cleaning time. The filtration efficiency decreased as the number of cleanings increased. Compared to the blank group, the filter material’s PM10 filtration efficiency decreased by 0.8%, 19.4%, 26.5%, and 32.4% after the first to fourth cleanings, respectively. The filter material’s PM2.5 filtration efficiency increased by 12.5% after the first cleaning, and decreased by 12.9%, 17.6%, and 30.2% after the second to fourth cleanings, respectively. The filter material’s PM1.0 filtration efficiency increased by 22.7% after the first cleaning, and decreased by 8.1%, 13.8%, and 24.5% after the second to fourth cleanings, respectively. Water cleaning mainly affected the filtration efficiency of particulates sized 0.3–2.5 μm. Reduced graphite oxide air filter materials could be water washed twice and maintain cleanliness equal to 90% of the original filter material. Water washing more than twice could not achieve the standard cleanliness equal to 85% of the original filter material. These data provide useful reference values for the evaluation of the filter materials’ regeneration performance.
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3

Hrudz, V. Ya, and N. B. Slobodian. "The Optimal Periodicity of the Gas Transmission Systems Cleaning." Prospecting and Development of Oil and Gas Fields, no. 4(73) (December 30, 2019): 85–90. http://dx.doi.org/10.31471/1993-9973-2019-4(73)-85-90.

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The technical and economic aspects of improving the hydraulic efficiency of pipeline transmission are considered. Hydraulic efficiency of gas transmission systems reveals directly their economic efficiency and practicability, as well as the process of "aging" of the main gas pipelines over time. One of the effective methods of improving the hydraulic efficiency of a gas pipeline is its periodical cleaning with the use mechanical cleaning units. The process of cleaning gas transmission systems with cleaning pistons is technologically complicated and expensive. Therefore, when planning, it is necessary to create all the conditions that guarantee maximum cleaning efficiency and are costeffective. The increase of the number of gas pipeline cleanings improves the hydraulic effi-ciency of the systems. It increases the profit of gas transmission organizations. As a result, the cost for cleaning goes up and leads to the decrease of profit of the gas transportation companies. Therefore, the number of clean-ings of gas pipelines and gas transmission systems should be equal to the optimum number of cleanings over a period of time. The indices of economic efficiency of gas pipelines pigging are analyzed. The authors find that a more specific indicator of the evaluation of gas pipeline cleaning procedure is the increase in the total profit of the gas transmission company. The dependence of the gas transmission company profit on the number of gas pipe-line cleaning over a certain period of time is investigated. The method of specifying the optimal periodicity of gas transmission systems cleaning is offered. The mathematical model of the process is constructed. On the basis of the model, a transcendental equation for finding the optimal number of gas transportation system cleanings for a certain lifetime is obtained. A grapho-analytical method for the solution of the equation is offered. Based on the calculations, a graphical dependence of the optimal periodicity of gas transmission systems cleaning is constructed.
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Jayaraman, K. S. "Ganges pollution: Cleansing river due for cleaning." Nature 315, no. 6018 (May 1985): 363. http://dx.doi.org/10.1038/315363a0.

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5

Khawwam, Safa I., and Dheaa H. Al-Groosh. "Effect of Different Cleaning Regimes on Biofilm Formation of Acrylic-Based Removable Orthodontic Appliance: A Randomized Clinical Trial." Scientific World Journal 2023 (October 12, 2023): 1–9. http://dx.doi.org/10.1155/2023/9920850.

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Objectives. This study aimed to evaluate the effects of different cleaning regimes of acrylic-based removable orthodontic appliances on bacterial biofilm formation and whether the surface modification, i.e., polished acrylic fitting surface, reduces biofilm formation. Materials and Methods. This double-blind, parallel, randomized clinical trial involved thirty-nine orthodontic patients indicated for removable orthodontic appliances. The patients were allocated into three groups according to the cleaning method: brushing with a denture brush and chlorhexidine (CHX) toothpaste, Lacalut cleaning tablet, and a combination of both cleaning methods. Each patient wore an upper removable appliance containing eight wells fitted with eight detachable acrylic tiles (four polished and four unpolished) for seven days. Five types of oral microbiota were evaluated using selective growth media and biochemical tests. The biofilm cleaning efficacy was assessed using the colony-forming unit (CFU) and scanning electron microscopy (SEM). Statistical Analysis. Data from the CFU using different cleansing regimes were compared, following log transformation, using one-way analysis of variance (ANOVA). The polished and unpolished tiles were compared for biofilm formation on each cleansing method using an independent t-test. Results. There was no significant difference among the three cleaning methods on the polished or unpolished tiles. However, in polished tiles, streptococci were significantly reduced in all cleaning methods, whereas staphylococci and Staphylococcus aureus were markedly decreased in brushing and combination cleaning methods. However, the total number of anaerobic bacteria was significantly reduced in polished tiles using the combination method only. Conclusions. Polishing the fitting surface of an acrylic-based orthodontic appliance reduced the tested bacterial biofilm formation and may enhance cleaning efficiency. Brushing and combination methods showed superior cleaning effects compared to cleaning tablets. This trial is registered with NCT05707221.
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Kasimov, Sh A., A. Sulliev, and A. A. Eshkabilov. "Optimising Pulse Combustion Systems for Enhanced Efficiency and Sustainability in Thermal Power Engineering." E3S Web of Conferences 449 (2023): 06006. http://dx.doi.org/10.1051/e3sconf/202344906006.

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This study evaluates the potential of pulsed cleaning, an emerging technology, in the maintenance of heating energy and reclamation boilers. Findings suggest that pulsed cleaning presents an effective, energy-efficient and eco-friendly approach to deposit removal. However, there remains a necessity for further investigation to fine-tune the process and understand its long-term implications on boiler performance. The ultimate objective is to establish pulsed cleaning as a reliable, efficient and sustainable cleaning technique for boiler surfaces. The study determined that pulsed cleaning is an encouraging new technology for cleansing the surfaces of heating energy and reclamation boilers. Nevertheless, it was noted that additional research is required to fine-tune the pulsed cleaning procedure and to evaluate its prolonged effects on the efficiency of boilers.
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7

Yulia Vera and Susi Yanti. "Optimization of Water Guarantee for Making Face Cleaning Soap." Journal of Public Health and Pharmacy 2, no. 1 (March 25, 2022): 20–23. http://dx.doi.org/10.56338/jphp.v2i1.3731.

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Facial cleansers generally have good cleaning power. Facial cleansing soap is also very necessary to keep facial skin clean and healthy. One of the natural ingredients that can help the cleaning process is guava leaf water. Guava leaf water contains several secondary metabolites, such as tannins, triterpenoids, glycosides and flavonoids. In addition, the selection of dosage forms also affects the cleaning power of a cleaning soap. Therefore, in this study, a cleaning soap was made from guava leaf water and a physical evaluation of the soap was carried out in accordance with the specifications and requirements specified. The principle of the saponification reaction is the reaction between oil and KOH/NaOH. The facial cleansing soap made in this study is solid soap. Based on the quality test results, solid leri soap has a pH of 10.3, the saponification rate is 32 water content 34 water content 34% and respondent tests on the aroma and foam aspects which show good enough results so that guava water treatment can be an alternative solution to prevent the use of water. Facial cleanser that contains harmful chemicals.
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8

Krishna Kant Tiwari and Dr. Qaim Mehdi Rizbi. "An Analysis on Attribute Selection and Token Formation used for Duplicate Record Detection." Journal of Advances in Science and Technology 20, no. 2 (September 2, 2024): 163–70. http://dx.doi.org/10.29070/pv7aec32.

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The data mining method relies heavily on data pre-processing. The data cleansing methods that work for some types of data may not work for others. Extensive experiments are conducted to analyze & assess a newly constructed method for attribute selection. The data cleaning processes involve reducing the amount of attributes to deal with noisy data & duplicate data. The experimental findings demonstrate that it is an extremely efficient and straightforward method for attribute selection by significantly reducing the attributes. Efficiently reducing the time required for subsequent data cleaning processes, such as token synthesis, record similarity, & deletion, is the primary goal of attribute selection for data cleaning. Smart tokens for data cleansing are formed using the token generation algorithm, which is appropriate for data that consists of numeric, alphabetic, & non-numerical elements. Duplicate data can be efficiently removed using token-based data cleaning. Attribute selection & token-based technique will both shorten the time required.
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9

Schnabl, Dagmar, Vera Wiesmüller, Vera Hönlinger, Simon Wimmer, Emanuel Bruckmoser, and Ines Kapferer-Seebacher. "Cleansing efficacy of an auto-cleaning electronic toothbrushing device: a randomized-controlled crossover pilot study." Clinical Oral Investigations 25, no. 1 (June 6, 2020): 247–53. http://dx.doi.org/10.1007/s00784-020-03359-5.

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Abstract Objectives To compare the cleansing efficacy of a representative “ten seconds” auto-cleaning device with that of uninstructed manual toothbrushing in a pilot study. Materials and methods Twenty periodontally healthy probands refrained from oral hygiene for 3 days. Baseline full-mouth plaque scores (Rustogi Modified Navy Plaque Index, RMNPI) were assessed. After randomization, probands cleaned their teeth either with the auto-cleaning test device according to the manufacturer’s protocol or with a manual toothbrush. Plaque reduction was assessed by two aligned blinded investigators. After a 2-week recovery, the clinical investigation was repeated in a crossover design. The brushing pattern of the auto-cleaning device was analyzed in probands’ casts. Results Full-mouth plaque reduction was 11.37 ± 3.70% for the auto-cleaning device and 31.39 ± 5.27% for manual toothbrushing (p < 0.0001). The investigation of the auto-cleaning device’s brushing pattern in dental casts revealed a positive relationship of bristle rows in contact with tooth surfaces and the cleansing efficacy in the respective areas. A maximum of 2/4 bristle rows were in contact with the tooth surfaces; in some areas, the bristles had no contact to the teeth. Conclusions Uninstructed manual toothbrushing is superior to auto-cleaning. The alignment and density of the auto-cleaning device’s bristle rows need to be improved, and assorted sizes would be necessary to cover different jaw shapes. Clinical relevance The auto-cleaning device has been developed to accommodate individuals with poor dexterity or compliance. To date, it is unable to provide sufficient plaque reduction due to an inappropriate bristle alignment and poor fit with diverse dental arches.
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10

Gabarrón, S., M. Gómez, H. Monclús, I. Rodríguez-Roda, and J. Comas. "Ragging phenomenon characterisation and impact in a full-scale MBR." Water Science and Technology 67, no. 4 (February 1, 2013): 810–16. http://dx.doi.org/10.2166/wst.2012.633.

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Although there are few studies about clogging phenomenon in the peer-reviewed literature, it is considered one of the main operational challenges by membrane bioreactor (MBR) practitioners. This study presents data from the performance of a full-scale MBR affected by clogging, and ragging in particular. An evaluation of the efficiencies of different applied cleaning methods revealed the acid recovery cleaning to be more efficient than the basic recovery cleanings, although all maintenance cleanings were largely ineffective in recovering membrane permeability. Only declogging cleaning through the manual removal of the accumulated solids was found to be efficient, indicating that such solids were substantially unremoved by chemical cleaning. Moreover, reclogging following manual cleaning demonstrated a propensity for rapid clogging – within a period of 10 days over which the permeability returned to 68 and 88% of the pre-cleaned state. The analysis of the feedwater indicated suspended textile fibres (&gt;70% cotton) to be present at a concentration of more than 40 mg·L−1, ∼90% being smaller than 1 mm (0.06–0.4 mm). These small lengths of filaments evidently pass through pre-treatment and are retained on the membrane surface, forming ‘rags’ within the membrane module, notwithstanding the routine high quality of sludge reflected in the capillary suction time and filterability measurements. Pre-treatment improvement, manual cleaning and permeate flux reduction are the only options to minimise ragging impact over MBR performance.
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11

Rauf Shah, Syed Abdul, Shabana Tanveer, Bilal Zaman Babar, Malik Arshman Khan, Sikandar J. Bajwa, Salvan G., and Maryam Khurshid. "Denture Hygiene Habits among Elderly Patients Wearing Complete Dentures." Pakistan Journal of Medical and Health Sciences 15, no. 10 (October 30, 2021): 2679–81. http://dx.doi.org/10.53350/pjmhs2115102679.

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Aim: To determine the denture cleaning routine and habits in complete denture wearers according to cleaning frequency, patient age and life of dentures. Methods: In this cross-sectional study, a self-administered questionnaire was designed to learn about patient’s attitudes toward denture cleanliness in the Prosthodontics department. A detailed questionnaire was applied for total 130 patients visiting the Department of Prosthodontics in the Rehmat memorial postgraduate hospital Abbottabad for follow-up care. Data was recorded and analysed by using SPSS version 15.0 for results. Results: Total 130 participants including 90 males (69.3%) and 40 females (30.7%). 48.6% of participants clean their dentures every day, 32.9% once a week, and 18.5 % only occasionally. The highest percentage is seen in Group 1, which is 41.2%. Approximately 77% of Group 2 participants clean their dentures at least once a week, including both daily and once-a-week denture wearers. 71 individuals had been wearing dentures for 3-5 years. 41.2% of them clean their dentures every day, while 58.6 percent clean them twice a week. 6-8 years denture wearers do not clean them on a regular basis. Most patients 42% use only water, while 30% use a combination of water and a toothbrush. Around 20% of participants used soap and water, but only 8% of denture wearers utilised cleansing tablets in addition to water. There was significant difference among all groups (P=0.001). Conclusion: In this study it has been observed that full denture patients have trouble cleansing their dentures. A lack of regular cleaning practises and decreased use of cleaning solutions is the primary cause of poor denture hygiene among the seniors. Dentists should educate patients regarding optimal denture maintenance and materials used for cleaning verbally and in written form. Keywords: Denture Complete Denture hygiene, cleansing Habits, Denture cleaning solution.
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12

Pahwa, Payal, and Rashmi Chhabra. "BST Algorithm for Duplicate Elimination in Data Warehouse." INTERNATIONAL JOURNAL OF MANAGEMENT & INFORMATION TECHNOLOGY 4, no. 1 (June 26, 2013): 190–97. http://dx.doi.org/10.24297/ijmit.v4i1.4636.

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Data warehousing is an emerging technology and has proved to be very important for an organization. Today every business organization needs accurate and large amount of information to make proper decisions. For taking the business decisions the data should be of good quality. To improve the data quality data cleansing is needed. Data cleansing is fundamental to warehouse data reliability, and to data warehousing success. There are various methods for datacleansing. This paper addresses issues related data cleaning. We focus on the detection of duplicate records. Also anefficient algorithm for data cleaning is proposed. A review of data cleansing methods and comparison between them is presented.
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13

Hu, Chenyu, Guangyu He, Jiao Chen, Zhihao Fang, Zhufang Yang, and Zhaolu Zhang. "Research on Cleaning Mechanism of Anti-Erosion Coating Based on Thermal and Force Effects of Laser Shock." Coatings 10, no. 7 (July 15, 2020): 683. http://dx.doi.org/10.3390/coatings10070683.

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TiN coating plays a positive role in improving the abrasion resistance and impact resistance of aero-engines in sand and dust environments. However, little research has been done on the laser cleaning of TiN coatings that failed on aircraft engines. In this paper, TiN coatings are deposited on Ti6Al4V alloys by magnetic filtered cathodic vacuum arc (MFCVA). The TiN coating was laser cleaned with different parameters. By analyzing coating morphology, surface composition and sample profile, the research reveals the morphological change of the TiN coating after cleaning and the laser cleaning mechanism. The results show that for TiN–Ti6Al4V structure, when the laser average power density is 2.54 × 103 W/cm2, the cleaning mechanism of the coating is thermal expansion; The laser average power density is increased to 5.08 × 103 W/cm2, the cleaning mechanism is thermal expansion, accompanied by the thermal melting of the substrate, a small amount of molten substrate overflows from the crack. When the laser average power density is 5.08 × 103 W/cm2 and the number of cleanings doubles, the cleaning direction is perpendicular to each other, the cleaning mechanism is thermal expansion and thermal melting, both the substrate and the coating are melted, and the cleaning is obviously effective.
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Ahn, Jaehyeon, Kaicheng Yan, Salim Abdullah Bazher, Jungkeun Oh, Daewon Seo, Su-gil Cho, and Hyungwoo Kim. "Evaluation of Influencing Factors in Cleaning Performance for Bio-Fouling Removal Based on High-Pressure Water Jets." Journal of Marine Science and Engineering 12, no. 7 (June 27, 2024): 1086. http://dx.doi.org/10.3390/jmse12071086.

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Regular inspections and hull cleanings are essential to prevent bio-fouling on ships. However, traditional cleaning methods such as brush cleaning and high-pressure water-jet cleaning at docks are ineffective in cleaning niche areas like bow thrusters and sea chests. Consequently, cleaning robots based on brushes and water jets have been developed to effectively remove bio-fouling. However, there are concerns that brushes may damage hull coatings, allowing bio-fouling to penetrate the damaged areas. In this study, removal experiments were conducted to identify the most dominant factor in fouling removal using water jet-based cleaning, in preparation for the development of non-contact cavitation high-pressure water jet-cleaning robots. The Taguchi method was used to identify influential factors and generate experimental conditions, and equipment systems for the removal experiments were established. Image analysis was performed to assess the bio-fouling occurrences on each specimen before and after cleaning, and numerical simulations of the nozzle were conducted to estimate stagnation pressure and wall shear stress to confirm the effect on micro-fouling removal. The results indicated that pump pressure is the most influential factor in removing large bio-fouling organisms grown in marine environments and on ship surfaces.
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Juvarlinskaya, Elnura Rafat, and Gabil Balakishi Mamedov. "Determination of the economic efficiency of improved cowhide cleaning procedures." Agrarian Scientific Journal, no. 10 (October 27, 2022): 100–103. http://dx.doi.org/10.28983/asj.y2022i10pp100-103.

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The inability of the skin to fully perform its function leads to a decrease in the productivity of the animal, a decrease in the quality of products, the disease of animals and their withdrawal from production. The purpose of the study is to constructively improve the existing device for cleaning cowhide skins and determine its economic efficiency. The methodology is based on the development of a variant of the idea with a critical analysis of the design schemes of existing devices for cleaning cowhide skins. The purpose of the refinement is to increase the cleansing effect. The new features added to the design are aimed at increasing the cleansing effect. The flat end of the wheel-shaped box is made of blunt flat rough rigid cleaning elements from the bristles of the bristles coming out of the perforated holes.Cleaning is carried out mainly by rigid cleaning elements, and the fact that their flat side in the direction of rotational movement serves to mechanically disperse and comb out hard dirt stuck to the animal's fur. This allows you to choose a design in accordance with the different degree of contamination of the animal's skin, which contributes to an increase in the cleansing effect. The annual economic efficiency of application of the developed design in production conditions is calculated.
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Bdiri, Bensghaier, Chaabane, Kozmai, Baklouti, and Larchet. "Preliminary Study on Enzymatic-Based Cleaning of Cation-Exchange Membranes Used in Electrodialysis System in Red Wine Production." Membranes 9, no. 9 (September 3, 2019): 114. http://dx.doi.org/10.3390/membranes9090114.

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The use of enzymatic agents as biological solutions for cleaning ion-exchange membranes fouled by organic compounds during electrodialysis (ED) treatments in the food industry could be an interesting alternative to chemical cleanings implemented at an industrial scale. This paper is focused on testing the cleaning efficiency of three enzyme classes (β-glucanase, protease, and polyphenol oxidase) chosen for their specific actions on polysaccharides, proteins, and phenolic compounds, respectively, fouled on a homogeneous cation-exchange membrane (referred CMX-Sb) used for tartaric stabilization of red wine by ED in industry. First, enzymatic cleaning tests were performed using each enzyme solution separately with two different concentrations (0.1 and 1.0 g/L) at different incubation temperatures (30, 35, 40, 45, and 50 °C). The evolution of membrane parameters (electrical conductivity, ion-exchange capacity, and contact angle) was determined to estimate the efficiency of the membrane′s principal action as well as its side activities. Based on these tests, we determined the optimal operating conditions for optimal recovery of the studied characteristics. Then, cleaning with three successive enzyme solutions or the use of two enzymes simultaneously in an enzyme mixture were tested taking into account the optimal conditions of their enzymatic activity (concentration, temperatures, and pH). This study led to significant results, indicating effective external and internal cleaning by the studied enzymes (a recovery of at least 25% of the electrical conductivity, 14% of the ion-exchange capacity, and 12% of the contact angle), and demonstrated the presence of possible enzyme combinations for the enhancement of the global cleaning efficiency or reducing cleaning durations. These results prove, for the first time, the applicability of enzymatic cleanings to membranes, the inertia of their action towards polymer matrix to the extent that the choice of enzymes is specific to the fouling substrates.
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Zhang, Xin, Ling Yan Zhang, Yang Shuai Qiu, and Xin Qu. "Beneficiation of a Low-Grade Flaky Graphite Ore from Australia by Flotation." Advanced Materials Research 1090 (February 2015): 188–92. http://dx.doi.org/10.4028/www.scientific.net/amr.1090.188.

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The graphite ore from Australia is a sort of the low-grade and fine-scaled graphite ore. On the basis of the optimum rough grinding fineness, an open and a closed circuit tests were conducted which consist of one rougher, one scavenging, then four-time-regrinding and five-time-cleaning to the rough concentrate, one grinding and scavenging to the mixture of middling1~3, and the middling4~6 returned to the rougher, cleaning1 and cleaning2 respectively. Taking the kerosene, pine oil, lime as flotation reagents, the concentrate with grade improvement from 12.78% to 90.5% was achieved through the routine flotation method, as the flotation recovery rate reached to 92.46%.
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18

LaBonte, George A., and Robert J. Leso. "Cleaning Paper Birch in a Birch-Aspen Stand in Maine: A 34-Year Case History." Northern Journal of Applied Forestry 7, no. 1 (March 1, 1990): 22–23. http://dx.doi.org/10.1093/njaf/7.1.22.

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Abstract Periodic measurements were made for 34 years following cleanings in a 7-year-old paper birch-quaking aspen stand. The results demonstrate the value of removing aspen to assure a high proportion of birch. At age 41, in the fall of 1985, the untreated control plot is an essentially pure aspen stand. The cleaned portion contains various proportions of birch, depending on the season of initial cleaning and degree of release. A mixture of the herbicides, 2,4,5-T and 2,4-D, was used to do part of the cleaning. The best results were obtained from a combination of a partial cleaning in July and August of 1951, followed by a total cleaning 7 years later, where the stand is now dominated by paper birch. North. J. Appl. For. 7(1):22-23, March 1990.
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19

van Keulen, Kelly, Helmut Neumann, Jörn Schattenberg, Aura van Esch, Wietske Kievit, Manon Spaander, and Peter Siersema. "A novel device for intracolonoscopy cleansing of inadequately prepared colonoscopy patients: a feasibility study." Endoscopy 51, no. 01 (July 11, 2018): 85–92. http://dx.doi.org/10.1055/a-0632-1927.

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Abstract Background The importance of high quality preprocedural bowel preparation is widely acknowledged, but suboptimal bowel cleansing still occurs in up to 20 % of all colonoscopy patients. The aim of this study was to evaluate the performance of a novel intraprocedural cleaning device for cleaning poorly prepared colons. Methods This multicenter feasibility study included patients aged 18 – 75 years who were referred for colonoscopy. Intraprocedural cleaning was performed in patients after a limited preprocedural bowel preparation regimen (2 days of dietary restrictions and 2 × 10 mg bisacodyl). The primary outcome was the proportion of adequately prepared patients (Boston Bowel Preparation scale [BBPS] ≥ 2 in each segment) before and after segmental washing with the new device. Secondary outcomes included: cecal intubation rate, procedure time, system usability, patient satisfaction, and safety. Results 47 patients (42.6 % male), with a median age of 61 years (interquartile range [IQR] 46 – 67 years), were included at three clinical sites. Cecal intubation was achieved in 46/47 patients (97.9 %). The cleaning device significantly improved the proportion of patients with adequate bowel cleansing (from 19.1 % to 97.9 %; P < 0.001) and median BBPS score (from 3.0 [IQR 0.0 – 5.0] to 9.0 [IQR 8.0 – 9.0]). Median cecal intubation time and total procedure time were 16.5 minutes (IQR 9.0−28.3) and 34.0 minutes (IQR 25.0 – 42.8), respectively. Physicians were satisfied with the ease of use of the device and it was well tolerated by patients. No severe adverse events occurred during the study period. Conclusions This feasibility study suggests that the intraprocedural cleaning device appears to be safe and effective in cleaning poorly prepared colons to an adequate level, allowing a thorough colorectal examination.
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Sari, Sherlika Puspita, Achmad Gunadi, and Dewi Kristiana. "Efektivitas Perasan Daun Kemangi (Ocimum basilicum) dibanding Larutan Pembersih Gigi Tiruan Effervescent sebagai Pembersih Gigi Tiruan Resin Akrilik terhadap Pertumbuhan Candida albicans." Pustaka Kesehatan 7, no. 2 (May 27, 2019): 135. http://dx.doi.org/10.19184/pk.v7i2.19127.

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The heat cured acrylic resin is common used as denture base material, but its microporosity can affect the cleanliness of the denture base lead to accumulation of plaque and food waste, and further increase the number of Candida albicans and cause denture stomatitis. There are 2 type of cleaning agents; natural cleaning agents, such as basil and chemical cleaning agents, for example effervescent artificial cleaning tablets. This study compared the effectiveness of basil leaves squeeze and effervescent denture cleaning solutions in soaking heat cured acrylic resin plates on the growth of C. albicans. There were 24 of 10x10x1 mm acrylic resin plates divided into 6 treatment groups. The acrylic resin plate was soaked in the basil leaves squeeze and effervescent denture cleaning solutions. Measurement of C. albicans absorbance used a spectrophotometer, then calculated the total of C. albicans using the formula. Data was analyzed using the One Way ANOVA test. The analysis showed that there are significant differences on the growth inhibition of C. albicans between treatment groups (p <0.005). The effervescent denture cleansing solution has a better antifungal effectiveness than the basil leaves
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Fedorova, А. Yu, and Е. N. Bushuev. "Determining of kinetic characteristics of chemical cleaning from scale deposits in steam boiler generating tubes." Vestnik IGEU, no. 4 (2019): 5–11. http://dx.doi.org/10.17588/2072-2672.2019.4.005-011.

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Reliable operation of steam boilers is maintained by periodic in-service cleanings of the internal surfaces of the steam-water path. Such cleanings can be made with traditional and new acid cleaning agents. The nec-essary condition for developing an effective chemical cleaning program is predicting its required duration taking into account the properties of the detergent used and the contamination of the metal surface. Insufficient duration of this operation leads to increased residual contamination, while excessive duration – to metal dissolution. Traditionally, the required time for chemical cleaning is evaluated according to the results of laboratory experiments. The aim of this study is to obtain analytical dependencies and characteristics describing the kinetics of the acid stage of steam boiler chemical cleaning. The laboratory studies of the acid stage of chemical cleaning of samples of high-pressure steam boiler generating tubes were performed by the chemical etching method. The rates and completeness of the removal of lumpy and uniform deposits by acid reagents were also determined. The method of mathematical modeling was used to obtain the kinetic equation. The conditional purification rate constants for this equation were found by the methods of statistical processing of laboratory results. A description of the scale removal rate from the inner surface of the steam generating tubes is proposed as a first-order kinetic equation depending on their specific contamination and reagent washing solution acidity. The equation allows calculating the required duration of chemical cleaning for providing a given value of specific residual contamination of the metal surface. According to the results of the laboratory studies, the conditional rate constants of purification were determined using proven detergent reagents and types of scale. The adequacy of the obtained results is ensured by their consistency with real-life data. The results of the study can be used to select the technology of acid stages of chemical cleaning of lumpy and uniform deposits and justify their duration for providing standard values of specific residual contamination of the surface of steam generating tubes of drum boilers.
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Xue, Tao, Xin Zhang, Ping Cheng, Fenggang Sun, Fuquan Liu, and Tao Yu. "Non-Woven Fabric Filter Materials Used in Public Buildings for Filtering Particulate Matter Experience Performance Changes under Ultrasonic Cleaning Based on Dual Carbon Target." Buildings 14, no. 10 (September 27, 2024): 3105. http://dx.doi.org/10.3390/buildings14103105.

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The long-term use of air filters causes dust to accumulate on their surfaces or fill in the fibers of their internal filtering materials over time, thereby greatly reducing their effectiveness; therefore, the cleaning and replacement of air filter materials in public buildings are of great concern. The most commonly used non-woven fabric materials currently on the market are taken as the research object for this work, in which experiments are conducted on ultrasonic cleaning parameters, cleaning performance, regeneration effects, etc. The results showed that the best cleaning performance was achieved when the ultrasonic cleaning parameter was set to 120 W, and the cleaning time to 11.2 s, with a significant effect on particulate matter with a particle size of less than 2.5 μm. Under the premise of repeated dust containment, when PM10, PM2.5, and PM1.0 are cleaned nine, six, and seven times, respectively, the filtration performance for these particles can also recover to over 85% of the performance of the fresh filter material before cleaning; however, after ten ultrasonic cleanings, the filtration resistance decreased within the range of 4.6~20.7 Pa. In this study, we aim to effectively reduce the replacement of old filters and the generation of incineration pollution, thereby reducing carbon-dioxide-equivalent emissions and providing a reference value for achieving the efficient utilization of filter materials in public buildings under the dual carbon target.
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Lurie, Bobbi. "Cleaning." English Journal 91, no. 4 (March 2002): 90. http://dx.doi.org/10.2307/822467.

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HARADA, TANEOMI. "Coal cleaning course. 4. Chemical cleaning." Journal of the Fuel Society of Japan 67, no. 5 (1988): 342–52. http://dx.doi.org/10.3775/jie.67.342.

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SATO, Shohachiro. "Special issue/Cleaning. Ultrasonic cleaning system." Journal of the Surface Finishing Society of Japan 42, no. 4 (1991): 384–88. http://dx.doi.org/10.4139/sfj.42.384.

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Zaglauer, Paul, and Darwin Keeton. "Cleaning system down? Then considercontract cleaning." Metal Finishing 103, no. 9 (September 2005): 29–33. http://dx.doi.org/10.1016/s0026-0576(05)80719-6.

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Brahma, Honey, Shraiya Pant, Leonardo Micheli, Greg P. Smestad, and Nabin Sarmah. "Effect of Environmental Factors on Photovoltaic Soiling: Experimental and Statistical Analysis." Energies 16, no. 1 (December 21, 2022): 45. http://dx.doi.org/10.3390/en16010045.

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Soiling significantly impacts PV systems’ performance, but this can be mitigated through optimized frequency and timing of cleaning. This experimental study focused on the conditions leading to soiling. It utilized a novel method to evaluate the effectiveness of different cleaning frequencies. The transmittance of horizontally mounted glass coupons exposed outdoors in a warm and humid location was measured weekly and these measurements were used (i) to evaluate the variability of soiling and its seasonal correlations with environmental factors using linear regression models and (ii) to assess the effectiveness of the different cleaning cycles using statistical (F- and t-test) analysis. The minimum transmittance loss occurred during the season with the most frequent rainfall, which acted as the dominant natural cleaning agent. The experimental campaign showed that rainfalls do not completely clean soiling; a minimum intensity threshold has to be achieved to have a cleaning effect. The threshold rainfall was the highest for the weekly cleaned glass coupon and lowest for a coupon that was never cleaned. Based on the statistical analysis, it is suggested that weekly cleanings during winter and post-monsoon seasons and monthly cleanings during pre-monsoon and southwest monsoon seasons are optimal for areas in the Köppen–Geiger Cwa climate classification category. The correlation between soiling and environmental parameters was found to be highly dependent on the season. It may therefore not be possible to develop a simple, universal predictive relationship for soiling losses. The presented methodology is applicable to additional locations, even outside of the study area of India, to contribute to the understanding and mitigation of soiling.
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Haji, Aseel, Bashaer Alharbi, Khalid Alhazmi, Bassam Alharthi, Abdulrahman Kabli, and Muhammad Irfanullah Siddiqui. "Knowledge, Attitudes, and Practices of Self-ear Cleaning in Makkah Region, Cross-sectional Study." Saudi Medical Horizons Journal 1, no. 1 (November 28, 2021): 26–33. http://dx.doi.org/10.54293/smhj.v1i1.19.

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Background and aim: Cerumen or ear wax is a normal secretion from sebaceous and ceruminous glands found in the external auditory canal. Wrong self-ear cleaning attempts may lead to cerumen impaction, injuries, and otitis externa. we have concluded this study to assess the local community's knowledge about ear-cleaning, attitudes toward ear care, and self-ear cleaning practices. Methods: Cross-sectional online survey performed in May 2021 among general population to assess knowledge, attitudes, and practices of self-ear cleaning. We included all people aged between 18 to 90 years who live in Makkah region, also we excluded health care workers and who had previous ears, nose, and throat injuries. Results: A total of 544 participants responded to the survey, 351 (64.5%) were males and 193 (35.5%) were females, age between 18 to 55. Forty-four (8.1%) of participants thought that it is harmful to self-clean your ear. In contrast, 274 (50.4%) thought that we do not have to remove the wax from our ears constantly. About 32% of them clean to remove the dirt and 29.30% clean to improve their ear hygiene. Conclusion: Self-ear cleaning is a widespread practice, and most respondents showed a lack of knowledge regarding ear-cleansing mechanisms. In order to rectify the erroneous views, more public health education is needed to dissuade people from practicing self-ear cleaning and teach them about the function of cerumen and problems associated with self-ear cleaning.
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Soubieux, Annaelle, Marie Palamini, Cynthia Tanguay, and Jean-François Bussières. "Evaluation of decontamination strategies for cyclophosphamide." Journal of Oncology Pharmacy Practice 26, no. 2 (August 1, 2019): 413–22. http://dx.doi.org/10.1177/1078155219865931.

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Purpose The main objective was to determine the efficacy of various types of cleaning equipment and products after deliberate contamination with cyclophosphamide. The secondary objective was to test various cleaning scenarios using these equipment and products. Methods The study had two phases: testing of cleaning equipment (wipe : woven microfibers – Hygen®, two layers of non-woven microfibres and an inner layer of highly absorbent viscose fibres – MicronSolo®, two layers of non-woven microfibres and an inner layer of highly absorbent viscose fibres – MicroMix®, simili-tissu (low filament production) – Tork® and, mop : woven microfibers – Hygen®, microfibre and viscose – MicroOne®) and products (disinfectant : quaternary ammonium – DR100®, chlorine 0.1% – Zochlor® – Brutab® – PCS® NPH, sodium hypochlorite 2%, cleaner : detergent – Nu- Action 3®, cleaner and disinfectant: sodium hypochlorite 0.6% + detergent – Aliflex® and water) in phase 1 and testing of various cleaning procedures in phase 2. Specific areas of a room with a laminar flow hood (class II/type B2) were contaminated with 10 mcg of cyclophosphamide. Different types of surfaces were cleaned with various scenarios and the remaining cyclophosphamide was measured by the Institut national de santé publique du Québec. All tests were performed in triplicate. Results A total of 189 samples were obtained: 42 negative controls and positive controls, 54 during phase 1 and 93 during phase 2. All products were more than 96.5% effective. The 0.1% chlorines were the most effective products. Cleaning procedures with two or three products had average cleaning efficacies of 99.94–99.99%. Efficacy increased with the number of successive cleanings. When two products were used, the average cleaning efficacy varied between 99.78% and 99.98%, depending on the surface. Conclusion All cleaning products tested reduced cyclophosphamide contamination by more than 96.58%. Cleaning efficacy increased with successive cleaning. No scenario was effective in removing 100% of traces. Additional studies with larger samples should be conducted to confirm these results.
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INOUE, TOSHIO. "Coal cleaning course. 3. Physical cleaning. (2)." Journal of the Fuel Society of Japan 67, no. 4 (1988): 257–62. http://dx.doi.org/10.3775/jie.67.257.

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SAITO, Hitoshi. "Special issue/Cleaning. Technique of electronic cleaning." Journal of the Surface Finishing Society of Japan 42, no. 4 (1991): 380–83. http://dx.doi.org/10.4139/sfj.42.380.

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HASHIMOTO, Tomomi. "Miniaturization of Bathroom Cleaning (Bath Cleaning) Robot." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2022 (2022): 1A1—T01. http://dx.doi.org/10.1299/jsmermd.2022.1a1-t01.

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Borrohou, Sanae, Rachida Fissoune, and Hassan Badir. "Data cleaning survey and challenges – improving outlier detection algorithm in machine learning." Journal of Smart Cities and Society 2, no. 3 (October 9, 2023): 125–40. http://dx.doi.org/10.3233/scs-230008.

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Data cleaning, also referred to as data cleansing, constitutes a pivotal phase in data processing subsequent to data collection. Its primary objective is to identify and eliminate incomplete data, duplicates, outdated information, anomalies, missing values, and errors. The influence of data quality on the effectiveness of machine learning (ML) models is widely acknowledged, prompting data scientists to dedicate substantial effort to data cleaning prior to model training. This study accentuates critical facets of data cleaning and the utilization of outlier detection algorithms. Additionally, our investigation encompasses the evaluation of prominent outlier detection algorithms through benchmarking, seeking to identify an efficient algorithm boasting consistent performance. As the culmination of our research, we introduce an innovative algorithm centered on the fusion of Isolation Forest and clustering techniques. By leveraging the strengths of both methods, this proposed algorithm aims to enhance outlier detection outcomes. This work endeavors to elucidate the multifaceted importance of data cleaning, underscored by its symbiotic relationship with ML models. Furthermore, our exploration of outlier detection methodologies aligns with the broader objective of refining data processing and analysis paradigms. Through the convergence of theoretical insights, algorithmic exploration, and innovative proposals, this study contributes to the advancement of data cleaning and outlier detection techniques in the realm of contemporary data-driven environments.
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Bel-Berger, Patricia, and Terri Von Hoven. "Effects of Mechanical Cleaning on Cotton Fibers: Part III: Effects of Card Wire Condition on White Specks." Textile Research Journal 67, no. 12 (December 1997): 857–65. http://dx.doi.org/10.1177/004051759706701201.

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Combinations of gin and mill cleaning sequences have been studied to determine the best way to clean both smooth-leaf and hairy-leaf cottons. The two varieties were subjected to four different levels of lint cleaning at the gin, followed by nine different mill cleaning sequences, for a total of thirty-six samples. All samples were tested for fiber properties (Part II), yarn strength, and fabric strength and appearance. The yarn and fabric properties are reported in this paper. In the middle of the study, the card wire was damaged and subsequently replaced, which presented the opportunity to determine the impact of the card wire's condition on white specks. In addition, image analysis of the fabric samples by Optimas detected the percent white, the percentage of the area of white specks in a specified area of fabric. Because of the variability of white specks, a larger sample size was needed than was available for the mill samples, so only trends can be reported for the mill samples. In general, the more aggressive the cleaning, the higher the percent white. When comparing the effect of ginning, each additional lint cleaner produced an increase in percent white for the worn card wire. The new card wire decreased the percent white overall as compared to the worn card wire. The new card wire samples with three lint cleanings had a significantly higher white speck level than zero, one, or two lint cleaners. Similarly, the harsher the mill cleaning, the higher the percent white. The hairy-leaf variety produced percent white values similar to those for the smooth-leaf cotton for both the old and new card wires. Thus, when confronted with the possibility of a white speck problem, minimal gin cleaning and less aggressive mill cleaning are recommended.
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Dorokhov, A. S., A. G. Aksenov, A. V. Sibirev, A. G. Ponomarev, and N. V. Sazonov. "Theoretical foundations for intensifying onion set harvesting." Agricultural Machinery and Technologies 17, no. 3 (September 20, 2023): 85–92. http://dx.doi.org/10.22314/2073-7599-2023-17-3-85-92.

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The paper shows that upgrading the design of onion harvesting machines through the integration of diverse separation intensifiers demonstrates limited efficacy in improving the quality of cleaning commercial produce. They noted the need to comply with strict technological parameters for setting up separating systems (feeding bulbs to a straight section of the pin web surface in the absence of losses, reducing the maximum speed of collision of the bulbs with the working elements of the cleaning unit to reduce damage, as well as improving the completeness of cleaning). The study reveals that one of the options for intensifying the process of onion set cleaning from soil and soil clods can be ultrasonic-assisted heap moistening during separation. (Research purpose) The research aims to determine theoretical principles driving the intensification of onion set cleaning from mechanical impurities. (Materials and methods) The research employed system analysis and synthesis methods, physical modeling based on probability theory and mathematical statistics, numerical techniques for solving analytical dependencies, classical mechanics methods - fundamental principles of fracture theory, soil mechanics. (Results and discussion) The paper justifies the necessary optimum regime for intensifying onion set harvesting and cleansing them from mechanical impurities. It substantiates the functional diagram of a digging-type onion harvester featuring an ultrasonic cleaning module, taking into account the functions of the state, external and control actions, as well as performance indicators. (Conclusions) The research resulted in developing a design concept for an ultrasonic-equipped separating module of a harvester to improve the onion set cleaning process. This design conforms to the agrotechnical requirements, ensuring maximum soil and impurity sieving (at least 98 percent), minimizing losses (not exceeding 2 percent) and bulb damage (not exceeding 2 percent).
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Yokoyama, Masayuki, Kouichi Shiraishi, and Akihiro Kishimura. "Glassware cleaning." Drug Delivery System 34, no. 3 (July 25, 2019): 213–15. http://dx.doi.org/10.2745/dds.34.213.

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Williams, Ruth. "Cleaning manual." Nursing Management 16, no. 6 (September 25, 2009): 15. http://dx.doi.org/10.7748/nm.16.6.15.s19.

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Wright, Christopher. "Cleaning Closets." CFA Institute Magazine 19, no. 5 (September 2008): 20–21. http://dx.doi.org/10.2469/cfm.v19.n5.10.

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Cahn, Julie. "Environmental Cleaning." AORN Journal 115, no. 3 (February 25, 2022): 264–71. http://dx.doi.org/10.1002/aorn.13623.

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Grosholz, Emily. "Spring Cleaning." Hudson Review 56, no. 1 (2003): 119. http://dx.doi.org/10.2307/3852920.

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Hauser, Jessica C. "Spring Cleaning." Family Medicine 53, no. 6 (June 2, 2021): 468–69. http://dx.doi.org/10.22454/fammed.2021.560776.

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Haila, Yrjö. "Cleaning women." Tiede & edistys 37, no. 3 (March 1, 2012): 282. http://dx.doi.org/10.51809/te.105080.

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Ueda, Koichi. "Tank Cleaning." JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN 23, no. 6 (1988): 372–86. http://dx.doi.org/10.5988/jime1966.23.372.

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Barger, M. Susan, A. P. Giri, William B. White, and Thomas M. Edmondson. "Cleaning Daguerreotypes." Studies in Conservation 31, no. 1 (February 1986): 15. http://dx.doi.org/10.2307/1505955.

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Kampa, Stephen. "Cleaning House." Hopkins Review 2, no. 3 (2009): 404–6. http://dx.doi.org/10.1353/thr.0.0104.

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Fletcher, Catherine. "House Cleaning." Hopkins Review 11, no. 4 (2018): 574–75. http://dx.doi.org/10.1353/thr.2018.0101.

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Varey, N. C. "Denture cleaning." British Dental Journal 179, no. 10 (November 1995): 372. http://dx.doi.org/10.1038/sj.bdj.4808927.

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Hatva, Erika. "Spring Cleaning." Biomedical Instrumentation & Technology 46, sp12 (January 1, 2012): 1. http://dx.doi.org/10.2345/0899-8205-12.1.1.

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Sedgwick, Fred. "Cleaning Windows." English in Education 24, no. 3 (September 1990): 84. http://dx.doi.org/10.1111/j.1754-8845.1990.tb00089.x.

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Ashleigh Synnott. "Cleaning Products." Antipodes 31, no. 1 (2017): 148. http://dx.doi.org/10.13110/antipodes.31.1.0148.

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