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1. Experimental and theoretical studies on the atmospheric degradation of 1, 1, 2, 2, 3, 3, 4-heptafluorocyclopentane

Author:
Chen, Weiwang; He, Jinwei; Jiang, Ye; Zhang, Haijun; Zhou, Xiaomeng
Source:
Atmospheric environment 2019 v.196 pp. 38-43
ISSN:
1352-2310
Subject:
cleaning; cleaning agents,   etc   ; atmospheric chemistry; hydroxyl radicals; models; temperature; toxicity;     Show all 7 Subjects
Abstract:
... Given its excellent cleaning ability, environment amity, low toxicity, etc., 1, 1, 2, 2, 3, 3, 4-heptafluorocyclopentane (F7A) has been recommended as a new generation of cleaning agent with great application potential. In this paper, the atmospheric degradation of F7A initiated by reacting with OH radical is studied both in theory and experiment. The experimental rate constants of F7A with OH are ...
DOI:
10.1016/j.atmosenv.2018.09.057

2. Multi-staged granular beds applied to the filtration of ultrafine particles: An optimization of collector diameters

Author:
Charvet, Augustin; Wingert, Loïc; Bardin-Monnier, Nathalie; Pacault, Stéphanie; Fournier, Frantz; Bemer, Denis; Thomas, Dominique
Source:
Powder technology 2019 v.342 pp. 341-347
ISSN:
0032-5910
Subject:
cleaning,   etc   ; filtration; models; powders; spraying;     Show all 5 Subjects
Abstract:
... Granular beds exhibit interesting performances, in terms of ultrafine particle collection efficiency, hot gas cleaning, low cost and robustness. Nevertheless, some authors highlighted that ultrafine particle deposit is essentially located in the first layers of the granular bed. Thus, only a small depth is useful thereby reducing both the operation time between two uncloggings and the process yiel ...
DOI:
10.1016/j.powtec.2018.10.004

3. Effect of industrial scale stand-off distance on water jet break-up, cleaning and forces imposed on soil layers

Author:
Fuchs, Enrico; Kricke, Sebastian; Schöhl, Enrico; Majschak, Jens-Peter
Source:
Food and bioproducts processing 2019 v.113 pp. 129-141
ISSN:
0960-3085
Subject:
cleaning,   etc   ; biofouling; ketchup; petrolatum; prediction;     Show all 5 Subjects
Abstract:
... The effect of stand-off distance (the distance between a stationary nozzle and a soiled surface, L) on cleaning by a water jet generated by a 3mm nozzle (diameter, dN) was studied. Two nozzle gauge pressures, pN=2.0bar and 4.0bar, giving jet Reynolds numbers of ReJet=43800 and 61600, were investigated, for four soils with different cleaning behaviour (petroleum jelly, ketchup, mustard, starch+diat ...
DOI:
10.1016/j.fbp.2018.11.008

4. Validation of a coupled model of discrete element method with multibody kinematics to simulate the screening process of a swing-bar sieve

Author:
Wang, Yang; Yu, Jianqun; Yu, Yajun; Zhang, Qiang
Source:
Powder technology 2019 v.346 pp. 193-202
ISSN:
0032-5910
Subject:
cleaning,   etc   ; kinematics; models; powders; screening; soybeans;     Show all 6 Subjects
Abstract:
... The swing-bar sieve is a separation machine that is widely used in grain grading and cleaning as well as seed processing. The motion of the screen deck is a complex planar motion. In this paper, the LA-LK laboratory scale swing-bar sieve and soybean particles are taken as the research objects. The real-virtual boundary method is proposed to build the geometrical model of the screen deck. The motio ...
DOI:
10.1016/j.powtec.2019.01.076

5. Heliostat field cleaning scheduling for Solar Power Tower plants: A heuristic approach

Author:
Ashley, Thomas; Carrizosa, Emilio; Fernández-Cara, Enrique
Source:
Applied energy 2019 v.235 pp. 653-660
ISSN:
0306-2619
Subject:
cleaning,   etc   ; algorithms; climate; energy; solar energy;     Show all 5 Subjects
Abstract:
... Soiling of heliostat surfaces due to local climate has a direct impact on their optical efficiency and therefore a direct impact on the productivity of the Solar Power Tower plant. Cleaning techniques applied are dependent on plant construction and current schedules are normally developed considering heliostat layout patterns, providing sub-optimal results. In this paper, a method to optimise clea ...
DOI:
10.1016/j.apenergy.2018.11.004

6. Measurement of effective filtration area of pleated bag filter for pulse-jet cleaning

Author:
Kim, Jin Sik; Lee, Myong-Hwa
Source:
Powder technology 2019 v.343 pp. 662-670
ISSN:
0032-5910
Subject:
cleaning,   etc   ; bags; dust; filters; filtration; powders;     Show all 6 Subjects
Abstract:
... A pleated filter cartridge is a potential component to reduce the installation space required for a bag house dust collection system. However, the optimal pleating method has not been suggested yet, and it has been dependent upon the manufacturer's know-how and experience. In this study, dimensionless parameter, α, which is the ratio of pleat height to pleat width, was introduced to determine the ...
DOI:
10.1016/j.powtec.2018.11.080

7. A Membrane Protein Complex Docking Benchmark

Author:
Koukos, Panagiotis I.; Faro, Inge; van Noort, Charlotte W.; Bonvin, Alexandre M.J.J.
Source:
Journal of molecular biology 2018 v.430 no.24 pp. 5246-5256
ISSN:
0022-2836
Subject:
cleaning,   etc   ; membrane proteins; models;     Show all 3 Subjects
Abstract:
... We report the first membrane protein–protein docking benchmark consisting of 37 targets of diverse functions and folds. The structures were chosen based on a set of parameters such as the availability of unbound structures, the modeling difficulty and their uniqueness. They have been cleaned and consistently numbered to facilitate their use in docking. Using this benchmark, we establish the baseli ...
DOI:
10.1016/j.jmb.2018.11.005

8. Cleaning of Fluid-Infused Surfaces in Microchannels

Author:
Li, Yongjian; Hu, Xiangyu; Liang, Shuaishuai; Li, Jiang; Chen, Haosheng
Source:
Langmuir 2018 v.34 no.42 pp. 12532-12537
ISSN:
1520-5827
Subject:
cleaning,   etc   ; hydrodynamics; surface tension;     Show all 3 Subjects
Abstract:
... When an immiscible fluid is flowing over a fluid-infused surface with transverse grooves in a microchannel, the infused fluid is either left in or cleaned away from the grooves by the flowing fluid. The cleaning status depends on the geometric parameters of the groove and the contact angle of the flowing fluids. The critical width of the grooves for the infused fluid enclosed in or driven out of t ...
DOI:
10.1021/acs.langmuir.8b02237

9. Wetting and spreading: Fundamental theories to cutting-edge applications

Author:
Si, Yifan; Yu, Cunlong; Dong, Zhichao; Jiang, Lei
Source:
Current opinion in colloid & interface science 2018 v.36 pp. 10-19
ISSN:
1359-0294
Subject:
cleaning,   etc   ; industry; liquids; spraying;     Show all 4 Subjects
Abstract:
... Wetting and spreading are familiar phenomena in nature and commonly observed in our daily life, and of great significance for basic scientific researches as well as providing solutions to the cutting-edge technical applications. Recent decades, learning from Nature, unique wetting and spreading behaviors have been bio-mimetically realized through the construction of artificial materials, which hav ...
DOI:
10.1016/j.cocis.2017.12.006

10. The coral settlement box: A simple device to produce coral stock from brooded coral larvae entirely in situ

Author:
Linden, Bart; Vermeij, Mark J.A.; Rinkevich, Baruch
Source:
Ecological engineering 2019 v.132 pp. 115-119
ISSN:
0925-8574
Subject:
cleaning,   etc   ; cages; coral reefs; corals; fouling; juveniles; larvae; polymethylmethacrylate;     Show all 8 Subjects
Abstract:
... Coral reef restoration requires efficient, effective and scalable techniques and methodologies to counteract the continued decline of coral reefs. Here we tested an in situ method to collect and settle fully developed planulae shed by the brooding coral species (Stylophora pistillata). Three devices called Coral Settlement Boxes (CSB; L × W × H: 50 × 40 × 6 cm; V: 4.5 L) were built from transparen ...
DOI:
10.1016/j.ecoleng.2019.04.012

11. Algal fouling and extracellular organic matter removal in powdered activated carbon-submerged hollow fiber ultrafiltration membrane systems

Author:
Zhang, Yan; Wang, Xinyi; Jia, Hongjing; Fu, Bangguo; Xu, Rongwei; Fu, Qiang
Source:
The Science of the total environment 2019 v.671 pp. 351-361
ISSN:
0048-9697
Subject:
cleaning,   etc   ; activated carbon; algae; deformation; fouling; organic matter; synergism; ultrafiltration;     Show all 8 Subjects
Abstract:
... In this work, the effect of powdered activated carbon (PAC) on fouling by algal solution during ultrafiltration using two different PAC dosing strategies: pre-depositing PAC onto the membrane surfaces or the conventional addition of PAC to the bulk feed. The addition of PAC by either mode improved the removal of extracellular organic matter (EOM) from the algal solution. However, for the pre-depos ...
DOI:
10.1016/j.scitotenv.2019.03.371

12. Strengthening of very large crystalline and polycrystalline Nd:YAG rods for high-power laser applications

Author:
Feldman, Revital; Jackel, Steven; Moshe, Inon; Meir, Avi; Lebiush, Eyal; Horowitz, Zvi; Lumer, Yaakov; Shimony, Yehoshua
Source:
Journal of materials science 2019 v.54 no.9 pp. 6772-6785
ISSN:
0022-2461
Subject:
cleaning,   etc   ; Weibull statistics; coatings; grinding; modulus of rupture; polytetrafluoroethylene;     Show all 6 Subjects
Abstract:
... A multistep thermochemical etching procedure was applied to very large Nd³⁺:YAG rods to increase their fracture strength. The strengthening procedure combined selection of high-quality material, fine centerless grinding, thermochemical etching, and (after completion of the lapping, polishing and AR coating) an additional hot thermochemical etching, with rod ends protected with poly-tetra-fluoro-et ...
DOI:
10.1007/s10853-019-03340-y

13. Deposited Nanoparticles Can Promote Air Clogging of Piezoelectric Inkjet Printhead Nozzles

Author:
Li, Yuanhua; Dahhan, Omar; Filipe, Carlos D. M.; Brennan, John D.; Pelton, Robert H.
Source:
Langmuir 2019 v.35 no.16 pp. 5517-5524
ISSN:
1520-5827
Subject:
cleaning,   etc   ; adhesion; air; dispersions; filtration; hydrophobicity; nanoparticles; nozzles; polystyrenes;     Show all 9 Subjects
Abstract:
... Piezoelectric inkjet printing is susceptible to printhead clogging when printing with inks that contain dispersed particles. This paper investigates the mechanisms by which 28–530 nm nanoparticle dispersions induce printhead clogging without forming large aggregates or thick deposited layers on printhead surfaces. Printing experiments were combined with nanoparticle deposition studies and with exp ...
DOI:
10.1021/acs.langmuir.8b04335

14. Kinematics of elastic screen surface and elimination mechanism of plugging during dry deep screening of moist coal

Author:
Zhou, Zhiguo; Huang, Long; Jiang, Haishen; Wen, Pengfei; Zhao, LaLa; Zhao, Yuemin; Duan, Chenlong; Luo, Zhenfu; Wang, Zhenqian; Liu, Chusheng; Ziming, Wang
Source:
Powder technology 2019 v.346 pp. 452-461
ISSN:
0032-5910
Subject:
cleaning,   etc   ; coal; deformation; image analysis; kinematics; powders; screening; vibration;     Show all 8 Subjects
Abstract:
... The vibrating screens with elastic screen surface (EVS) have been widely used for cleaning moist coal due to their good performance. In this work, the kinematics and spatial behaviors of a novel elastic screen surface, and the screening behavior of particles were investigated using dynamic simulation and image analysis system to reveal the elimination mechanism of plugging during dry deep screenin ...
DOI:
10.1016/j.powtec.2019.02.023

15. Role of feed water biodegradable substrate concentration on biofouling: Biofilm characteristics, membrane performance and cleanability

Author:
Farhat, N.M.; Javier, L.; Van Loosdrecht, M.C.M.; Kruithof, J.C.; Vrouwenvelder, J.S.
Source:
Water research 2019 v.150 pp. 1-11
ISSN:
0043-1354
Subject:
cleaning,   etc   ; biodegradability; biofilm; biofouling; biomass; hydrochloric acid; regrowth; sodium hydroxide;     Show all 8 Subjects
Abstract:
... Biofouling severely impacts operational performance of membrane systems increasing the cost of water production. Understanding the effect of critical parameters of feed water such as biodegradable substrate concentration on the developed biofilm characteristics enables development of more effective biofouling control strategies.In this study, the effect of substrate concentration on the biofilm ch ...
DOI:
10.1016/j.watres.2018.11.054

16. Effect of swirl flow on whey protein fouling and cleaning in a straight duct

Author:
Bouvier, L.; Fargnier, I.; Lalot, S.; Delaplace, G.
Source:
Journal of food engineering 2019 v.242 pp. 115-123
ISSN:
0260-8774
Subject:
cleaning,   etc   ; fouling; heat exchangers; shear stress; temperature; whey protein;     Show all 6 Subjects
Abstract:
... Whey protein fouling is a complex phenomenon involving several mechanisms. Product, surface properties and process parameters interact simultaneously. This experimental work focuses on the effect of a swirl flow on whey protein fouling and cleaning in a straight tube, independently of any other factors. In a holding section after a heating zone composed of a plate heat exchanger, the dry deposit m ...
DOI:
10.1016/j.jfoodeng.2018.08.024

17. An investigation in to batch cleaning using wash racks

Author:
Rodgers, Alistair; de Boer, Greg; Murray, Brent; Scott, Gordon; Kapur, Nikil
Source:
Food and bioproducts processing 2019 v.113 pp. 118-128
ISSN:
0960-3085
Subject:
cleaning,   etc   ; biofouling; image analysis; models; nozzles; surfactants; washing; water temperature;     Show all 8 Subjects
Abstract:
... Batch cleaning processes, using washing racks, were studied in two distinct phases; the distribution of flow within the rack to the formation of jets at the nozzles and the interaction of the jetted fluid with the surface. A pipe network approach was used to model the flow in the rack and the interaction of the fluid with the surface was studied using a specifically designed test rig. A stationary ...
DOI:
10.1016/j.fbp.2018.11.003

18. Mobile laboratories: An innovative and efficient solution for radiological characterization of sites under or after decommissioning

Author:
Goudeau, V.; Daniel, B.; Dubot, D.
Source:
Journal of environmental radioactivity 2019 v.196 pp. 194-198
ISSN:
0265-931X
Subject:
cleaning,   etc   ; analytical chemistry; infrastructure; monitoring; radioactivity; radionuclides; soil; wastes;     Show all 8 Subjects
Abstract:
... During the operation and the decommissioning of a nuclear site the operator must assure the protection of the workers and the environment. It must furthermore identify and classify the various wastes, while optimizing the associated costs. At all stages of the decommissioning radiological measurements are performed to determine the initial situation, to monitor the demolition and clean-up, and to ...
DOI:
10.1016/j.jenvrad.2017.04.010

19. Simulation of jet cleaning: Diffusion model for swellable soils

Author:
Joppa, M.; Köhler, H.; Kricke, S.; Majschak, J.-P.; Fröhlich, J.; Rüdiger, F.
Source:
Food and bioproducts processing 2019 v.113 pp. 168-176
ISSN:
0960-3085
Subject:
cleaning,   etc   ; equations; laboratory experimentation; shear stress; simulation models;     Show all 5 Subjects
Abstract:
... A physical-numerical simulation model for the cleaning of swellable soils by diffusive dissolution or cohesive separation of small soil particles, which was developed targeting a low computational effort, is presented and validated. The flow calculation, based on the Reynolds averaged Navier Stokes equations (RANS), and the calculation of the soil transport, modelled following the unsteady RANS co ...
DOI:
10.1016/j.fbp.2018.11.007

20. Fast preparation and recycling method for colloidal probe cantilevers in hydrophobic mapping applications

Author:
Babel, B.; Rudolph, M.
Source:
MethodsX 2019 v.6 pp. 651-659
ISSN:
2215-0161
Subject:
cleaning,   etc   ; atomic force microscopy; colloids; hydrophobicity; recycling; solvents;     Show all 6 Subjects
Abstract:
... Probe contamination of atomic force microscope (AFM) tips with colloidal probes is limiting the lifetime of the probe and the reproducibility in force interaction measurements, rendering cantilevers useless. Earlier proposed cleaning methods like mechanical scrubbing, UV, plasma and solvent cleaning procedures have limitations especially for inorganic particulate contaminations. In this paper we d ...
DOI:
10.1016/j.mex.2019.03.010