scholarly journals Effect of oxygen on power frequency breakdown voltage and decomposition characteristics of the C5F10O/N2/O2 gas mixture

RSC Advances ◽  
2019 ◽  
Vol 9 (33) ◽  
pp. 18963-18970 ◽  
Author(s):  
Yue Zhang ◽  
Xiaoxing Zhang ◽  
Yi Li ◽  
Yalong Li ◽  
Qi Chen ◽  
...  
Keyword(s):  
Breakdown Voltage ◽  
Carbon Deposition ◽  
Environmentally Friendly ◽  
Gas Mixture ◽  
Power Frequency ◽  
New Type ◽  
High Insulation ◽  
Effect Of Oxygen

C5F10O gas mixture is a SF6 potential substitute with high insulation strength and is a new type of environmentally friendly insulating gas. By adding oxygen to C5F10O gas mixture, insulation strength can be improved and carbon deposition can be suppressed.

Experimental studies on the power–frequency breakdown voltage of CF3I/N2/CO2 gas mixture

2017 ◽  
Vol 121 (10) ◽  
pp. 103303 ◽  
Author(s):  
Xiaoxing Zhang ◽  
Shuangshuang Tian ◽  
Song Xiao ◽  
Yi Li ◽  
Zaitao Deng ◽  
...  
Keyword(s):  
Breakdown Voltage ◽  
Experimental Studies ◽  
Gas Mixture ◽  
Co2 Gas ◽  
Power Frequency

scholarly journals KARAKTERISTIK ORGANIOLEPTIK OTAK-OTAK IKAN YANG DIBERI EDIBLE COATING KARAGINAN DENGAN PENAMBAHAN ASAP CAIR

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Eka Irma Q Bariah ◽  
Siegfried Berhimpon ◽  
Eunike Louisje Mongi
Keyword(s):  
Environmentally Friendly ◽  
Food Product ◽  
Edible Coating ◽  
The Other ◽  
Liquid Smoke ◽  
Organoleptic Characteristics ◽  
Randomized Design ◽  
New Type ◽  
Completely Randomized Design

Edible coating is a new type of packaging made of biopolymer. The advantages of edible coating is enable to protect the food product, the original appearance of the product can be maintained and the product can be eaten as well as environmentally friendly. The study aim was to look at the organoleptic characteristics of fish cake coated with edible coating of carrageenan were given a liquid smoke. The treatments  given were variation of carrageenan concentration i,e. 0%, 1%, 1,5%, 2%, 2,5%, 3%. The experiment was designed using a Completely Randomized Design (CRD). To determine the effect of treatments, the data were tested using organoleptical tests consists of hedonic and texture.The results shown that hedonic test of the appearance and color of the raw sample have significant effect (p>0,05), while the other test showed no significant effect (p>0,05). However, the organoleptical score for taste, smell and texture shown a tendency that the fish cake coated, have  higher score than without coated. Keywords: Edible coating, Carrageenan, Fish cake, Liquid smoke.

scholarly journals Environmentally friendly method for regeneration of copper chloride acidic solutions used in etching of printed circuits

2017 ◽  
Vol 18 ◽  
pp. 01021
Author(s):  
Dorota Kopyto ◽  
Wit Baranek ◽  
Zbigniew Myczkowski ◽  
Katarzyna Leszczyńska-Sejda ◽  
Michał Drzazga ◽  
...  
Keyword(s):  
Control Systems ◽  
Copper Chloride ◽  
Environmentally Friendly ◽  
Acidic Solutions ◽  
Printed Circuits ◽  
Innovative Method ◽  
Reactor Construction ◽  
New Type ◽  
Oxygen Utilisation ◽  
Environmentally Friendly Method

Etching of copper with acidic CuCl2 solution is a widely used chemical method in printed circuits production. During the process, the solution is enriched in Cu(I) ions, resulting in reduction and then loss of etching bath capacity. In order to ensure the required etching kinetics, the solution is regenerated by oxidation of Cu(I) to Cu(II). The industrially applied Cu(I) oxidants are, e.g.: Cl2, chlorates. Their application is expensive and associated with drawbacks related to health, safety and environmental hazards (e.g. Cl2 emission). In the result of long-standing cooperation between the IMN and MATUSEWICZ Budowa Maszyn, an innovative, original and environmentally friendly method of acidic solutions regeneration used during printed circuits etching was developed. A new-type reactor equipped with oxidation monitoring-control systems using oxygen or oxygen-enriched air was applied. The reactor construction enables to run the process with oxygen circulation in the reactor, ensures full oxygen utilisation in the regeneration process, achievement of the required performance and process rate, and eliminates expensive, hazardous and often toxic reagents. This is an innovative method, and since there are no analogous technologies currently known and used in Europe and worldwide, the presented method is technologically, economically and ecologically unrivalled.

New Post Etch Polymer Removal Process for Al-Interconnects and Vias in Tank and Spray Tools Using a New Inorganic Chemistry

2005 ◽  
Vol 103-104 ◽  
pp. 381-384
Author(s):  
Raimund Mellies ◽  
Stefan Kunz ◽  
Franz Nilius ◽  
Dieter Mayer ◽  
Andreas Kühner
Keyword(s):  
Inorganic Chemistry ◽  
Hydrogen Peroxide ◽  
Sulphuric Acid ◽  
Environmentally Friendly ◽  
Removal Process ◽  
Dielectric Layers ◽  
New Type ◽  
Etch Residue

A Post-Etch-Residue (PER) removal process for tank and spray tools has been developed using a new inorganic aqueous based chemistry. The performance of this new type of polymer remover, Inosolv 400 Fotopur®, on process wafers is compared with other inorganic chemistries such as DSP (Dilute Sulphuric acid hydrogen Peroxide) and DSP+, containing traces of HF. Inosolv 400 Fotopur® has improved polymer removal capabilities. Furthermore Inosolv 400 Fotopur® does not show any attack of the metal or dielectric layers and is inorganic based and thus environmentally friendly.

scholarly journals Experimental Study on Power Frequency Breakdown Characteristics of C4F7N/CO2 Gas Mixture Under Quasi-Homogeneous Electric Field

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 19100-19108 ◽  
Author(s):  
Xiaoxing Zhang ◽  
Qi Chen ◽  
Ji Zhang ◽  
Yi Li ◽  
Song Xiao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Electric Field ◽  
Gas Mixture ◽  
Homogeneous Electric Field ◽  
Co2 Gas ◽  
Power Frequency

Effect of oxygen on blood flow autoregulation in cat sartorius muscle

1981 ◽  
Vol 241 (6) ◽  
pp. H807-H815 ◽  
Author(s):  
S. M. Sullivan ◽  
P. C. Johnson
Keyword(s):  
Blood Flow ◽  
Perfusion Pressure ◽  
Important Determinant ◽  
Flow Regulation ◽  
Sartorius Muscle ◽  
Gas Mixture ◽  
Pressure Reduction ◽  
Effect Of Oxygen ◽  
Arteriolar Diameter

To assess the role of O2 in blood flow autoregulation, arteriolar diameter and erythrocyte velocity were measured in individual microvessels of the cat sartorius muscle while ambient O2 tension (PO2) and perfusion pressure were altered. The muscle surface was covered with a layer of silicone fluid equilibrated with a gas mixture containing 0—20% O2. Under control conditions (0% O2) all except the largest arterioles dilated with pressure reduction, and all showed significant blood flow autoregulation. Elevated PO2 diminished flow regulation and dilation in large and small arterioles when arterial pressure was reduced. This effect was generally more pronounced in the small arterioles where elevated PO2 caused complete cessation of blood flow. Complete blood flow stoppage was not routinely seen in larger vessels and may reflect the fact that these vessels also supply deeper tissue regions less affected by the change in ambient PO2. Our results indicate that the PO2 level of the tissue may be an important determinant in blood flow autoregulation.

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