scholarly journals Interaction of pyrolysed and un-pyrolysed organic materials enhances carbon accumulation in soil irrigated with water of variable electrical conductivity

2022 ◽  
Vol 215 ◽  
pp. 105193
Author(s):  
Gurpreet Singh ◽  
Manpreet Singh Mavi ◽  
Om Parkash Choudhary ◽  
Manpreet Kaur ◽  
Bhupinderpal Singh
Keyword(s):  
Electrical Conductivity ◽  
Organic Materials ◽  
Carbon Accumulation

scholarly journals Synthesis of AG Nanocrystal/Few-Layer Graphite Nanoplatelet Composites

2018 ◽  
Vol 27 (2) ◽  
pp. 096369351802700
Author(s):  
Shasha li ◽  
Nailiang Liu ◽  
Changqing Fang
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Grain Size ◽  
Electroless Plating ◽  
Organic Materials ◽  
Treatment Results ◽  
Plating Method ◽  
Distinct Boundary ◽  
Electroless Plating Method

The present study focuses on improving the combination of graphite nanoplatelet (GNP) with other organic materials without reducing its properties. An Ag nanocrystal was synthesized by electroless plating method under sonication at 40 °C, which was coated densely onto few-layer GNP and hexagon-slice GNP that was found during GNP treatment. Results illustrated that the Ag nanocrystal had uniform grain size and distinct boundary covered onto GNP. The thermal conductivity of the Ag nanocrystal /few-layer GNP (Ag/GNP) composite was superior to that of the GNP material. In addition, the Ag/GNP composite exhibited excellent electrical conductivity.

scholarly journals Tingkat dan laju penurunan kualitas air di DAS Brantas Malang Raya

2019 ◽  
Vol 5 (2) ◽  
pp. 185
Author(s):  
Ima Yudha Perwira
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Dissolved Oxygen ◽  
Organic Materials ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Decrease Rate ◽  
Better Than

The decrease level of water quality of Brantas Watershed in Malang Raya was observed in this study. The aim of this study was to observe the decrease level of water quality of Brantas Watershed from Batu to Malang City. This study was carried out in the Brantas Watershed of Malang Raya (8 stations: A, B, C, D, E, F, G, and H) for 18,4 Km. The water quality parameters observed in this study were: CODmn (permanganometry), CODcr (CODmn correlation based analysis), dissolved oxygen (DO) (Winkler iodometry), TDS and electrical conductivity (EC) (EC meter), pH (pH meter), and turbidity (Turbidity meter). The result showed the value of CODmn: 1,8-10,2 mg/L, CODcr: 5,6-31,5 mg/L, DO: 4,0-6,1 mg/L, TDS: 204-289 mg/L, EC: 430-617 µS/cm, pH: 7,1-7,6, and turbidity: 2,02-10,30 NTU. There are 3 stations (A, B, and C) with 1st class water quality, 1 station (D) with the 2nd class water quality, and 4 stations (E, F, G, and H) with 3rd class water quality. The decrease of water quality in the Brantas Watershed from Batu to Malang City was up to 3 times with a decrease rate of 2,3 mg/L-1Km-1. The decomposition of organic materials in the water of Batu City and western part of Malang City is relatively better than that of central parts of Malang City which might be caused by the over capacity of recovery (Self-purification mechanism).

Thionated Benzo[c]thiophen-1(3H)-one as Organic Cathodes with High Capacity for Sulfur-rich All Organic Lithium-ion Battery

2021 ◽  
Author(s):  
Bingjie Zhang ◽  
Xiaodong Yang ◽  
Ben He ◽  
Qiqi Wang ◽  
Zishun Liu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Organic Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
High Solubility ◽  
Environmental Friendliness ◽  
High Theoretical Capacity

Organic materials have potential advantages in lithium-ion batteries (LIBs) due to their environmental friendliness, flexible designability, and high theoretical capacity. However, the commonly low electrical conductivity and high solubility of...

Electrical conductivity of some organic materials containing metals

1971 ◽  
Vol 51 ◽  
pp. 176 ◽  
Author(s):  
J. R. McKellar ◽  
J. A. Weightman ◽  
R. J. P. Williams
Keyword(s):  
Electrical Conductivity ◽  
Organic Materials

Effect of Iron Pyrites, Organic Materials and Micronutrients on Yield of Rice and Wheat and on Amelioration of Sodic Soil

1985 ◽  
Vol 21 (4) ◽  
pp. 329-333 ◽  
Author(s):  
K. N. Tiwari ◽  
Anil Kumar
Keyword(s):  
Electrical Conductivity ◽  
Hydraulic Conductivity ◽  
Beneficial Effect ◽  
Grain Yield ◽  
Green Manure ◽  
Organic Materials ◽  
Sodium Content ◽  
Sodic Soil ◽  
Manure Treatment ◽  
Iron Pyrites

SUMMARYThe effects of iron pyrites, organic materials and micronutrients on the yield of rice and wheat and on the amelioration of saline sodic soil were studied at Kanpur. The grain yield of the first crop of rice increased from 1.37 to 2.97 t ha−1 following application of pyrites at 50% of the estimated gypsum requirement. The grain yield of succeeding wheat and rice crops also increased significantly with pyrites treatment. These increases were associated with marked decreases in pH, electrical conductivity, exchangeable and soluble sodium content and bulk density of the soil and with an increase in its hydraulic conductivity. The beneficial effect of pyrites was increased with the application of rice straw, Sesbania as green manure and micronutrients, the pyrites plus Sesbania green manure treatment being the most effective.

scholarly journals Changes in Carbon and Nitrogen Mineralization in Soil Organic Matter Under High CO2 Concentrations

2021 ◽  
Author(s):  
Jun GUO ◽  
Li-Ge WANG ◽  
Ai-Lian WU ◽  
Jin-Song WANG ◽  
Er-Wei Dong ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Total Organic Carbon ◽  
Nitrogen Mineralization ◽  
Organic Material ◽  
Organic Materials ◽  
Carbon Accumulation ◽  
Chicken Manure ◽  
Cow Manure ◽  
Carbon And Nitrogen ◽  
Active Organic Carbon

Abstract To investigate the effects of different organic materials on soil organic carbon accumulation and carbon and nitrogen mineralization under different CO2 concentrations, field topsoil was used as the test soil and chicken manure, cow manure, and straw were mixed with soil samples as organic materials. The changes in organic carbon, carbon and nitrogen mineralization, and utilization of carbon sources by soil microorganisms were measured under high CO2 (800–1000 ppm) and low CO2 (400–500 ppm) concentrations. The results showed that adding organic material to soil can accelerate the mineralization of organic carbon and reduce the mineralization of nitrogen. While the addition of chicken manure and cow manure reduced the content of total organic carbon and active organic carbon in soil, straw increased the content of total organic carbon and active organic carbon in soil and reduced carbon utilization by the soil microbial community. Collectively, our findings revealed that, under high CO2 concentrations, adding organic material to soil can accelerate the mineralization of organic carbon and reduce the mineralization of nitrogen.

The Effects of Conjugation Length and Substituents on the Conductivity of Oxidatively Doped p,p’-Disubstituted Diphenylpolyenes

1989 ◽  
Vol 173 ◽  
Author(s):  
Linda S. Sapochak ◽  
David W. Polis ◽  
Art N. Bain ◽  
Paul Bryson ◽  
Larry R. Dalton ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Optical Spectroscopy ◽  
Organic Materials ◽  
Optical Nonlinearity ◽  
Conjugation Length ◽  
Oxidative Doping ◽  
Absorption Frequencies ◽  
Insight Into

ABSTRACTIt has been demonstrated that the oxidative doping of a.oo-diphenylpolyenes generates polaronic and/or bipolaronic intermediates which can be directly observed by optical spectroscopy. Furthermore, the absorption frequencies have been shown to correlate with conjugation length and the nature of the substituents. Species are stabilized by donor substituents and destabilized by acceptor substituents. We now report conductivity and ESR studies on iodine doped α,ω-diphenylpolyenes, containing donor p,p’-disubstituents. The implications of these studies can provide insight into electrical conductivity and optical nonlinearity of doped organic materials.

Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

1973 ◽  
Vol 31 ◽  
pp. 444-445
Author(s):  
P.J. Killingworth ◽  
M. Warren
Keyword(s):  
Electron Beam ◽  
Organic Materials ◽  
Operating Parameters ◽  
Low Density ◽  
Beam Diameter ◽  
Incident Electron Beam ◽  
Specimen Material ◽  
Voltage Compensation ◽  
Selection Of ◽  
Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

Removing Substrate Background in TEM Microanalysis

1974 ◽  
Vol 32 ◽  
pp. 568-569
Author(s):  
John C. Russ ◽  
Nicholas C. Barbi
Keyword(s):  
Electrical Conductivity ◽  
Rapid Growth ◽  
Organic Film ◽  
Absolute Concentration ◽  
Background Signal ◽  
X Ray ◽  
Elemental Concentrations ◽  
Transmission Electron ◽  
Electron Microscopes ◽  
The Continuum

The rapid growth of interest in attaching energy-dispersive x-ray analysis systems to transmission electron microscopes has centered largely on microanalysis of biological specimens. These are frequently either embedded in plastic or supported by an organic film, which is of great importance as regards stability under the beam since it provides thermal and electrical conductivity from the specimen to the grid.Unfortunately, the supporting medium also produces continuum x-radiation or Bremsstrahlung, which is added to the x-ray spectrum from the sample. It is not difficult to separate the characteristic peaks from the elements in the specimen from the total continuum background, but sometimes it is also necessary to separate the continuum due to the sample from that due to the support. For instance, it is possible to compute relative elemental concentrations in the sample, without standards, based on the relative net characteristic elemental intensities without regard to background; but to calculate absolute concentration, it is necessary to use the background signal itself as a measure of the total excited specimen mass.

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