scholarly journals Potensiometric of Struvite (MgNH4PO4.6H2O) Formation System from Biogas Waste in Electrolysis Cells

2021 ◽  
Vol 328 ◽  
pp. 09004
Author(s):  
Sintha Soraya Santi ◽  
Nina Eka Ayuanggraeni ◽  
Trusshero Kharisma Claudiana ◽  
Sukamto
Keyword(s):  
Yellow Crystal ◽  
Electrolysis Time ◽  
Time Condition ◽  
Brownish Yellow ◽  
Electrode Area ◽  
Electrolysis Cells ◽  
Formation System ◽  
Potential Conditions ◽  
Yellowish White

Struvite is a yellowish white or brownish yellow crystal. Struvite occurs in an alkaline environment. The reaction that occurs is the reduction of H+ and at the anode is H2O oxidation. The purpose of this study was to determine the maximum potential conditions of deposition of struvite which was contained in biogas waste by electrolysis process and to improve the quality of struvite fertilizer. The method was carried out with the electrolysis time condition of 30 minutes where the electrical voltages used were 1V, 3V, 5V, 7V, and 9V and the size of the electrodes used were 30 cm, 36 cm, 50 cm, 60 cm, 70 cm. From the research that has been done, it could be seen that the struvite formed was very small, the best conditions in this study at 5V voltage and 36 cm electrode area with a yield of 28.8%.

scholarly journals Specificity of human capital in the conditions of digital transformation of business organizations

2019 ◽  
Vol 265 ◽  
pp. 07012
Author(s):  
Andrey Polyanin ◽  
Tatyana Golovina ◽  
Irina Avdeeva ◽  
Yulia Vertakova
Keyword(s):  
Human Capital ◽  
New Economy ◽  
Digital Economy ◽  
Business Organizations ◽  
Global State ◽  
Potential Development ◽  
Innovative Management ◽  
Digital Competencies ◽  
Formation System

In Russia have emerged all the necessary prerequisites for the digital potential development and digital economy growth rates acceleration. The country has a sufficient intellectual and scientific base, supported by a good system of secondary and higher education. At the same time, the digital economy requires global production renewal, all levels staff retraining and rapid innovative management methods implementation. By all means in conditions of such economy highly skilled and highly paid personnel who has the opportunity to develop and to invest their human capital are certainly needed. The necessity to study the problems associated with the changes of quality of human capital influenced by the digitalization of the economy and determining the vectors for their solution is due to the discrepancy between the skills provided by the education system and required by the new economy, integration and globalization processes that dictate the need to search for modern methods, tools and management solutions for perfection of the formation system and use of human capital. Under the digital economy, the country's competitiveness is determined in the first instance by the accumulated and developed human capital, possessing various network and digital competencies at various levels: global, state, corporate and socio-individual.

scholarly journals Correlation between Concentrations of Ni and Y in Y-Doped BaZrO3 Electrolyte in Co-Sintered Cells: A Case of Controlled NiO Activity by Using MgO-NiO Solid Solution as Anode Substrate

Membranes ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 95 ◽  
Author(s):  
Donglin Han ◽  
Kenji Kuno ◽  
Tetsuya Uda
Keyword(s):  
Solid Solution ◽  
Clear Correlation ◽  
Sintering Process ◽  
Composite Anode ◽  
Electrolyte Layer ◽  
Half Cell ◽  
Electrolysis Cells ◽  
Anode Substrate ◽  
Cation Ratio

BaZr0.8Y0.2O3-δ (BZY20) is promising to be applied as an electrolyte in fuel cells, electrolysis cells, etc. However, when a half cell composed of a BZY20 electrolyte layer and a BZY20-NiO composite anode substrate is co-sintered (1400–1600 °C), Ni diffuses from the anode substrate into the electrolyte layer. Y content in the electrolyte layer decreases dramatically, since BZY20 cannot be equilibrated with NiO at such high temperature. Such Ni diffusion and Y loss are detrimental to the electrochemical performance of the electrolyte layer. In this work, we added MgO-NiO solid solution into the anode substrate to adjust the NiO activity (aNiO) during the co-sintering process, and used three different co-sintering methods to control the BaO activity (aBaO). The results revealed that by decreasing aNiO in the system, the as-co-sintered electrolyte layer had the composition shifting towards the direction of high Y and low Ni cation ratios. A clear correlation between the intra-grain concentration of Ni and Y was confirmed. In other words, to prepare the electrolyte with the same Y cation ratio, the Ni diffusion into the electrolyte layer can be suppressed by using the MgO-NiO solid solution with a high MgO ratio and a low Ni ratio. Moreover, by increasing aBaO, we found that the Y cation ratio increased and approached the nominal value of the pristine BZY20, when Mg1−xNixO (x = 0.3 and 0.5) was used. In summary, both aNiO and aBaO play important roles in governing the composition of the electrolyte layer prepared by the co-sintering process. To evaluate the quality of the electrolyte layer, both the intra-grain Y and Ni concentrations should be carefully checked.

Study on Disinfection of Oilfield Wastewater

2013 ◽  
Vol 634-638 ◽  
pp. 267-270
Author(s):  
Hong Yan Lin ◽  
Chun Cai Wang ◽  
Lian Bao Kan
Keyword(s):  
Water Quality ◽  
Power Consumption ◽  
Electrolysis Time ◽  
Wastewater Disinfection

The suitability of Daqing oilfield wastewater disinfection by electrolysis technology was analyzed. The results show that electrolysis disinfection method is applicable to the water quality of Daqing oilfield. The effect of current, wastewater flow, and electrolysis time on the disinfection effect and power consumption was studied. The results show that the disinfection effect is good and economical for Daqing oilfield wastewater when the current is 2A and the flow is 40L/h.

NEW TABANIDÆ

1882 ◽  
Vol 14 (11) ◽  
pp. 210-212 ◽  
Author(s):  
John Marten
Keyword(s):  
Black Spot ◽  
Brownish Yellow ◽  
The Third ◽  
Golden Yellow ◽  
Brownish Black ◽  
Bright Green ◽  
Lateral Margins ◽  
Yellowish White

Sub-genus Therisplectes.—“Eyes pubescent; ocelligerous tubercle more or less distinct; eyes (female) with three or four bright green or bluish cross-bands.”T. Californicus, n. sp. Length 17 mm. Eyes pubescent, with thin purplish bands. Front yellowish-gray; callosity nearly square, brownish, shining, prolonged above; ocelligerous tubercles brownish-black on a black spot. Face and cheeks grayish with white hairs. Palpi yellowish white with small black hairs, Antennæ reddish; annulate portion of third joint black; upper angle prominent. Thorax grayish-brown with the usual gray stripes and golden yellow pubescence; humerus reddish; pleura and pectus grayish with long white hairs. Abdomen brownish-black, sides of first four segments brownish-yellow, which color leaves a row of black irregular spots in the middle, largest on the second segment and smallest on the third; also dark oblique spots on lateral margins. Venter yellowish with yellow pubescence; darker on the last three segments. Femora black, brownish at the tip; front tibiæ dark brown, proximal end lighter; second and third tibiæ darker toward the tip; tarsi dark brown. Wings byaline; costal cell light brown; faint clouds in cross-veins and bifurcation of third vein.

Treatment of Textile Dye Wastewater by Electrocoagulation Method

2011 ◽  
Vol 281 ◽  
pp. 276-279
Author(s):  
Xin Wang ◽  
Dan Su ◽  
Hai Bo Li
Keyword(s):  
Organic Matter ◽  
Textile Industry ◽  
Industrial Wastewater ◽  
Textile Dye ◽  
Dye Wastewater ◽  
Electrolysis Time ◽  
Organic Matter Degradation ◽  
Study Results ◽  
Raw Wastewater

Electrocoagulation method for textile dye wastewater treatment was investigated in this study. Results show that electrocoagulation can be used powerfully and effectively in organic matter degradation of textile industrial wastewater, where the extent of COD removal and decolorization are achieved about 75.45% and 84.62% after 25 minutes, respectively. pH for textile dye wastewater ascended higher than that of raw wastewater and temperature increased with electrolysis time. GC-MS spectra suggest that organic pollutants in textile dye wastewater are effectively oxidized and decomposed by direct current electrolysis. In addition, the quality of the upper layer liquid after electrolysis nearly meets the criteria of Discharge Standard of Water Pollutants for Dyeing and Finishing of Textile Industry (GB4287-92) of China.

Defect Inspection for SMD Inductors

2014 ◽  
Vol 635-637 ◽  
pp. 989-992
Author(s):  
Chun Li Chang ◽  
Wen Hong Wu ◽  
Rui Cian Weng ◽  
Chi Hung Hwang
Keyword(s):  
Machine Vision ◽  
High Frequency ◽  
Defect Inspection ◽  
Inspection Method ◽  
Electronic Products ◽  
Electrode Area ◽  
Vision Inspection ◽  
Defect Area ◽  
Machine Vision Inspection

This paper presents a machine vision inspection method for winding high frequency inductors, which affects the reliability and quality of the electronic products. This paper proposes how to quickly and correctly improve the quality of component detection, an important issue for surface mounted device (SMD) inductors manufacturers. SMD components easily damage the phenomenon of the electrode, and the brightness of the brightness of the damaged area of the electrode close to normal, not easy to be precise defect area separated from the electrode area.

scholarly journals The Effect of the Leaven Against to Quality of Banana Kepok (Musa paradisiaca L) Tapai

2020 ◽  
Vol 12 (01) ◽  
pp. 60
Author(s):  
Wiwik Gusnita ◽  
Kasmita Kasmita
Keyword(s):  
Economic Value ◽  
Tropical Fruit ◽  
The Public ◽  
Musa Paradisiaca ◽  
The Third ◽  
Banana Flour ◽  
Processed Products ◽  
The Right ◽  
Yellowish White

Banana (Musa paradisiaca normalis linn) is a type of tropical fruit that is very popular, because of it is tastes good, is easy to get and the price is relatively cheap, bananas also contain vitamins, minerals and carbohydrates which are quite high. Society in general consumes bananas as a dessert. Therefore, in the context of developing food diversification, processed banana products can overcome the saturation of fresh bananas and increase their shelf life and increase their economic value. Bananas can be processed into various processed products such as dry banana, banana flour, banana jam, banana wine, banana tapai, and banana sauce. Among the processed banana products, fermentation processing that is making banana tapai is an alternative that is not yet well known to the public, but has a pretty good future. The purpose of this study was to analyze the effect of giving different amounts of leaven and to analyze the right amount of leaven in making Kepok banana tapai. This type of research is an experiment with panelist data sources using organoleptic tests. Based on the results of experiments with 4 (four) treatments and 4 (four) quality repetitions which resulted in the color produced from tapai banana kepok is yellowish white the best results in the third treatment (0.35), the aroma of tapai banana produced is typical scented tapai Banana Kepok the best results in the third treatment (0.35% leaven), taste Banana Kepok tapai produced, sweet and taste leaven, the best results in the third treatment (0.35% leaven), and texture of Kepok banana tapai produced was the best soft yield at the third treatment (0.35% leaven).

scholarly journals Implementasi Program Arsip Masuk Desa

2017 ◽  
Vol 10 (1) ◽  
pp. 31-52
Author(s):  
Burhanudin Dwi Rokhmatun
Keyword(s):  
Human Resources ◽  
Concept Mapping ◽  
Government Administration ◽  
Village Community ◽  
Village Government ◽  
The Village ◽  
Alternative Solutions ◽  
Potential Conditions

The Village Archives Program (Arsip Masuk Desa/AMD) is a program launched by ANRI since 2009. The objective of AMD Program is to increase the role of archives in administering village government administration in order to improve services to the village community. AMD Program targets are the increasing quality of archival management in village government in accordance with archival rules and legislation.Archival courses presented in the AMD Program includes the Making of Official Scripts, Letters Management, Arrangement and Use of Archives, and Disposal of Archives. The scope that became the object of AMD is the archive created in the Village Government, Village Consultative Board (Badan Permusyawaratan Desa/BPD), and Kelurahan. The obstacles faced in the implementation of the AMD Program stem from the inequalities of potential, conditions, and resources, including village-to-village gaps in the areas of budget and human resources, and socio-cultural differences. Alternative solutions that can be implemented in the implementation of the AMD Program include the formulation of a clear concept, mapping the condition and resources of the village, as well as the preparation of human resources and budget.

Shaker tests on downhole seismic tools

Geophysics ◽  
1988 ◽  
Vol 53 (9) ◽  
pp. 1160-1168 ◽  
Author(s):  
Vincent de Montmollin
Keyword(s):  
Quality Control ◽  
Field Experiment ◽  
Test Procedure ◽  
Site Quality ◽  
Open Hole ◽  
Vsp Data ◽  
Increased Sensitivity ◽  
Formation System

Shaking a downhole seismic tool in situ is a powerful test procedure able to detect abnormal acoustical behavior. It consists of feeding a swept voltage to a special geophone located inside the tool, close to the triaxial measurement geophones. The special geophone creates a swept force, which excites the tool‐formation system. The resulting motion of the tool is recorded through the triaxial geophones. In this paper, a simple model of the tool‐formation system excited by the shaker is given. Predictions from this model compare nicely with results from a field experiment conducted with a very compact seismic tool. Another field experiment, conducted with a longer tool, shows that tool intrinsic modes are clearly visible in the shaker data. Their frequencies and amplitudes depend upon the geometry of the contact between the tool and the formation. A comparison between shaker data and impulsive shot data shows that moderate modal vibrations do not significantly deteriorate the quality of VSP data, but that large modal vibrations, when present, are visible on the shot data and also correspond to an increased sensitivity to tube waves. Recording one shaker trace at each depth allows routine well‐site quality control of VSP data. Such quality control is especially important for the horizontal axes of a tool and in an open hole, where coupling conditions are not easily controlled.

Experimental Study for the Influencing Factors of Electrograining Quality of PS Plate

2012 ◽  
Vol 200 ◽  
pp. 734-738
Author(s):  
Yi Wen Ma
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Quality Control ◽  
Current Density ◽  
Electrolyte Concentration ◽  
Great Influence ◽  
The Other ◽  
Electrolysis Time ◽  
Orthogonal Experiments

Aiming at quality control of grain of PS plate，the orthogonal experiments on electrolyte concentration, current density, electrolysis temperature and time in the process of electrograining have done by surface roughometer, metalloscope, etc. Experimental results indicate that the electrolyte concentration has great influence on the amplitude parameters of surface roughness, the other factors influence the amplitude parameters and the spacing parameters significantly; the interactions of current density with electrolyte concentration or electrolysis time have not significance.

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