scholarly journals An ocean thermocline desalination system using the direct spray method

Desalination ◽  
2021 ◽  
Vol 520 ◽  
pp. 115373
Author(s):  
Qian Chen ◽  
Muhammad Burhan ◽  
Kum Ja M. ◽  
Yong Li ◽  
Kim Choon Ng
Keyword(s):  
Spray Method

Pengaruh Pendopingan Karbon Terhadap Struktur Kristal dan Morfologi TIO2

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Frastica Deswardani ◽  
Helga Dwi Fahyuan ◽  
Rimawanto Gultom ◽  
Eif Sparzinanda
Keyword(s):  
Thin Film ◽  
Crystal Structure ◽  
Grain Size ◽  
Tio2 Thin Film ◽  
Crystal Size ◽  
Diffraction Peak ◽  
Carbon Doping ◽  
Tio2 Anatase ◽  
Spray Method ◽  
Carbon Analysis

Telah dilakukan penelitian mengenai pengaruh konsentrasi doping karbon pada lapisan tipis TiO2 yang ditumbuhkan dengan metode spray terhadap struktur kristal dan morfologi TiO2. Hasil karakterisasi SEM menunjukkan bahwa penambahan doping karbon dapat meningkatkan ukuran butir. Lapisan TiO2 doping karbon 8% diperoleh ukuran butir terbesar adalah 1.35 μm, sedangkan ukuran tekecilnya adalah 0.45 μm. Sementara itu, untuk lapisan tipis TiO2 didoping karbon 15% memiliki ukuran butir terbesar yaitu 1.76 μm dan terkecil 0.9 μm. Hasil XRD menunjukkan seluruh puncak difraksi lapisan tipis TiO2 dengan doping karbon 8% dan 15% merupakan TiO2 anatase. Ukuran kristal lapisan TiO2 didoping karbon 8% diperoleh sebesar 638,08 Å dan untuk pendopingan 15% karbon ukuran kristal lapisan tipis TiO2 adalah 638,09 Å, hal ini menunjukkan ukuran kristal kedua sampel tidak mengalami perubahan yang signifikan.   TiO2 thin film with carbon doping has been successfully grown by spray method. The research on the effect of carbon doping on crystal structure and morfology of TiO2 has been prepared by varying carbon concentration (8% and 15% carbon). Analysis of SEM showed that the addition of carbon may increase the grain size. Thin film of TiO2 doped carbon 8% has the largest grain size 1.35 μm, while the smallest grain size is 0.45 μm. Meanwhile, for thin film TiO2 doped carbon 15% has the largest grain size 1.76 μm and smallest 0.9 μm. The XRD results showed the entire diffraction peak of thin film TiO2 doped carbon 8% and 15% were TiO2 anatase. The crystal size of thin film TiO2 doped carbon 8% was obtained at 638.08 Å and for thin film TiO2 doped carbon 15% the crystalline size of TiO2 thin film was 638.09 Å, this shows that the crystal size of both samples did not change significantly.    

Peripheral Arterial Thrombolysis by Modified Pulse-Spray Method

1994 ◽  
Vol 30 (5) ◽  
pp. 835
Author(s):  
Ki Nam Lee ◽  
Sun Seob Choi ◽  
Yung Il Lee ◽  
Byeong Ho Park ◽  
Jae Ik Kim ◽  
...  
Keyword(s):  
Spray Method ◽  
Peripheral Arterial ◽  
Arterial Thrombolysis

The Modified Pulse-Spray Method Using Urokinase in Subacute and Chronic Thrombotic Arterial Occlusion

1996 ◽  
Vol 35 (6) ◽  
pp. 887
Author(s):  
Youn Kil Kim ◽  
Seong Tae Hahn ◽  
Jee Hee Baek ◽  
Choon Yul Kim ◽  
Kyung Sub Shinn
Keyword(s):  
Arterial Occlusion ◽  
Spray Method

Sprayed P25 scaffolds for high-efficiency mesoscopic perovskite solar cells

2015 ◽  
Vol 51 (51) ◽  
pp. 10306-10309 ◽  
Author(s):  
Haibo Huang ◽  
Jiangjian Shi ◽  
Songtao Lv ◽  
Dongmei Li ◽  
Yanhong Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Uniform Thickness ◽  
Large Size ◽  
Spray Method

Uniform, thickness-controllable and large-size mesoscopic TiO2 films have been prepared by a spray method by using commercial P25 nanoparticles, yielding high efficiency for perovskite solar cells.

Morphology and Mechanical Properties of a Composite Coating by Electrostatic Dry Spray Method

2021 ◽  
Vol 886 ◽  
pp. 168-174
Author(s):  
Mohanad N. Al-Shroofy ◽  
Hanna A. Al-Kaisy ◽  
Rabab Chalaby
Keyword(s):  
Composite Coating ◽  
Steel Substrate ◽  
Low Carbon Steel ◽  
Spray Coating ◽  
Manufacturing Cost ◽  
Low Carbon ◽  
Spray Method ◽  
Coating Layers ◽  
Al Powder ◽  
Electrostatic Spray

Powder spray coating was used for many applications such as paint decoration and protection against corrosive environments. The electrostatic spray method is used to lower the manufacturing cost and the environmental effect during the production process. It is done by electrostatic device and spray gun to create a layer on the substrate to play a protective role. Different dry powders were mixed to form a composite mixture consisted of Al2O3 and SiC or ZrSiO4 with Al powder as a binder. The powders mixture was deposited by electrostatic spray technique with a high voltage of 15 kV on a low carbon steel substrate of (40 x 10 x 4) mm in dimensions. Two groups of mixtures were used to form the coating layers. Powders of Al2O3 with (20 and 40) weight percent (wt%) of SiC as the first group and (20 and 40) wt% of ZrSiO4 as the second group were used. 5 wt% of Al powder was added as a binder, and the samples were heat treated at 900 C° for 2 hours. A detailed characterization of the composite coating layers was performed using XRD, SEM, and EDX, as well as, micro-hardness measurements. The obtained surface composite layers were smooth and having good particle distribution which leads to enhance roughness values (Ra). Furthermore, the hardness increased with increasing the amount of carbide and zirconia, and the obtained layers show no presence of defects or cracks.

scholarly journals Extending Postharvest Longevity and Improving Quality of Strawberry (Fragaria Ananasa Duch Cv. ‘Gaviota’) Fruit by Postharvest Salicylic Acid Treatment

2015 ◽  
Vol 3 (2) ◽  
pp. 17 ◽  
Author(s):  
Mahsa Geransayeh ◽  
Sadegh Sepahvand ◽  
Vahid Abdossi
Keyword(s):  
Weight Loss ◽  
Salicylic Acid ◽  
Vitamin C ◽  
Horticultural Crops ◽  
Postharvest Application ◽  
Spray Method ◽  
Paper Disk ◽  
Fruit Decay ◽  
Activity Decay ◽  
Disk Method

Strawberries are an extremely perishable fruit mainly due to their soft texture and sensitivity to fungal infection. Postharvest application of conventional fungicides to fruits is prohibited. As an alternative to fungicides, salicylic acid has been found to enhance disease resistance of horticultural crops. In order to study the effect of salicylic acid as a phenolic compound on the postharvest durability and quality characteristics of strawberry fruit. ‘Gaviota’ strawberries were treated with SA at different concentrations (0, 25, 50 and 100 µlL-1), then stored for 12 days at 4 ˚C and 75 % RH in darkness. Two different methods were applied (spray SA on fruits and paper disk method). Quality attributes such as weight loss, pH, TA, TSS, vitamin C, anthocyanin, calcium, pectin, CAT, POD, PG activity, decay percentage and sensory analyses evaluated every 3 days during storage. Results showed that, treated fruits with SA had lower weight loss, pH, TSS, POD, PG, decay and higher TA, vitamin C, anthocyanin, calcium, pectin, CAT and fruit quality compared with controls. Between two methods of treatment, paper disk method had higher effect on fruit decay and quality compared to spray method and as a general result, caused longer storability.

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