scholarly journals Electrochemically Developed Micro/Nanostructures in Single Ion Track Filters As a New Pattern

2015 ◽  
Vol 12 (1) ◽  
pp. 50-53
Author(s):  
S Kaur
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Electroless Deposition ◽  
Pore Shape ◽  
Pattern Synthesis ◽  
Morphological Studies ◽  
Nano Structures ◽  
Track Membranes ◽  
Scanning Electron ◽  
Shape And Size

The technique of pattern synthesis using potentiostatic electroless deposition is a very weighty process for fabrication of micro/nano structures and is cheap and simple. In this paper, electrochemical/electroless deposition have been used to develop copper micro/nanostructures within the micro/nanochannels of single ion track membranes. Scanning electron microscope was used for morphological studies. These micro/nanostructures have uniform diameters of 5µm and 200nm which is equivalent to the pore shape and size of the pattern used.

The Alteration of the Pore Spaces in Sandstones

1973 ◽  
Vol 31 ◽  
pp. 210-211
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Coarse Grained ◽  
Depositional Fabric ◽  
Soluble Components ◽  
Scanning Electron ◽  
Shape And Size

The pore spaces in sandstones are the result of the original depositional fabric and the degree of post-depositional alteration that the rock has experienced. The largest pore volumes are present in coarse-grained, well-sorted materials with high sphericity. The chief mechanisms which alter the shape and size of the pores are precipitation of cementing agents and the dissolution of soluble components. Each process may operate alone or in combination with the other, or there may be several generations of cementation and solution.The scanning electron microscope has ‘been used in this study to reveal the morphology of the pore spaces in a variety of moderate porosity, orthoquartzites.

Spore surface morphology of pine stem rusts of Canada as observed under a scanning electron microscope

1971 ◽  
Vol 49 (3) ◽  
pp. 371-372 ◽  
Author(s):  
Y. Hiratsuka
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Surface Morphology ◽  
Spore Surface ◽  
Endocronartium Harknessii ◽  
Scanning Electron ◽  
Shape And Size

Two types of surface markings on the aeciospores of five pine stem rusts occurring in Canada were observed under a scanning electron microscope. Spores of four species, Endocronartium harknessii (J. P. Moore) Y. Hiratsuka (= Peridermium harknessii J. P. Moore), Cronartium coleosporioides Arth. (= P. stalactiforme Arth. & Kern), C. comptoniae Arth., and C. ribicola J. C. Fisch., had annulated processes with five to seven layers and each spore had a smooth area. The smooth area was at the same level as the top layer of the processes. Each species could be distinguished by the shape and size of its processes. Spores of Cronartium comandrae Pk. had no smooth areas and had obtuse or cuspidate processes with no annulations. Different ontogenies were apparent for the two types of spore surface markings.

Effect of Different Abrasives on Chemical Mechanical Polishing for Magnesia Alumina Spinel

2020 ◽  
Vol 866 ◽  
pp. 115-124
Author(s):  
Zhan Kui Wang ◽  
Ming Hua Pang ◽  
Jian Xiu Su ◽  
Jian Guo Yao
Keyword(s):  
Particle Size ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Chemical Mechanical Polishing ◽  
Removal Rate ◽  
Mechanical Polishing ◽  
Key Factors ◽  
Particle Size Analyzer ◽  
Scanning Electron ◽  
Shape And Size

In this paper, a series of chemical mechanical polishing (CMP) experiments for magnesia alumina (Mg-Al) spinel were carried out with different abrasives, and the materials removal rate (MRR) and surface quality was evaluated to explore their different effects. The scanning electron microscope (SEM) and laser particle size analyzer were also employed to test the micro-shape and size distribution of abrasives. Then, the mechanism of different effects with different abrasives was analyzed in CMP for Mg-Al spinel. Those experimental results suggest that different subjecting pressure ratios of abrasives to polishing pad with different abrasive are the key factors leading to difference polishing performances in CMP.

Redefinition of Denisiella Folsom & Mills, 1938 (Collembola: Sminthurididae) with description of three new species from Brazil

Zootaxa ◽  
2018 ◽  
Vol 4434 (1) ◽  
pp. 111
Author(s):  
JOSÉ G. PALACIOS-VARGAS ◽  
AILA SOARES FERREIRA ◽  
DOUGLAS ZEPPELINI
Keyword(s):  
Electron Microscope ◽  
New Species ◽  
Scanning Electron Microscope ◽  
Antennal Segment ◽  
Different Shapes ◽  
Three New Species ◽  
New Diagnosis ◽  
Scanning Electron ◽  
Shape And Size

A new diagnosis of Denisiella is provided, based on the revision of most descriptions, including three new species from Brazil. New Brazilian taxa share the presence of 6 + 6 eyes, 4 + 4 serrate spine-like on tibiotarsi III and the polycarinate setae on tibiotarsi II but differ from each other by the shape and size of the sensilla of the tibiotarsi I. Denisiella rhizophorae sp. nov. has the combination of sensilla on tibiotarsi I of rhagidial type and C2 blunt on antennal segment III. Only D. betschi sp. nov. has barbulate spines on head and D. caatingae sp. nov. is the only which males present nasal organ. They are illustrated with drawings and scanning electron microscope photographs. Three different shapes of sensilla in the tibiotarsi I were observed and were compared with other species. 

Effect of biomass derived biochar materials on mechanical properties of biochar epoxy composites

2021 ◽  
pp. 095440622199070
Author(s):  
Om Prakash Minugu ◽  
Raghavendra Gujjala ◽  
Ojha Shakuntala ◽  
Panchal Manoj ◽  
M Somaiah Chowdary
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Research Work ◽  
Proximate Analysis ◽  
Waste Biomass ◽  
X Ray Diffraction ◽  
Morphological Studies ◽  
Different Characteristics ◽  
Thermal Stability Of ◽  
Scanning Electron

In the current research work an attempt is made to utilize the ecofriendly biochar materials as reinforcements in polymer composites. Biochar materials were developed from Arhar stalks and Bael shells waste biomass by pyrolysis process and studied for different characteristics. The surface morphology, crystalline structure, fixed carbon content and elemental composition of synthesized biochar materials were studied using scanning electron microscope, x-ray diffraction and proximate analysis. The results showed that the biochar (BB) produced using Bael shells are highly amorphous in nature and have high amount of elemental carbon than arhar stalk biochar (AB). Using epoxy as matrix and biochar materials as reinforcement composites were fabricated with three different filler weight fractions i.e., 2%, 4% and 6%. The composites with 4% Bael shell biochar exhibited high tensile strength, and has 183% more strength when compared with neat epoxy. Increasing the filler percentage from 4% to 6% the strength and hardness of composites reduced due to poor interfacial bonding. Morphological studies were performed on fractured surfaces of tensile tested samples by using scanning electron microscope. From thermogravimetric analysis it was found that with the inclusion of biochar materials thermal stability of composites was significantly enhanced. 4% Bael biochar composites (BBC) exhibited higher thermal resistance which left 8% residual mass.

Étude au microscope électronique à balayage de la bulbille de Huperzia selago (L.) Bernh. (Lycopodium) : méristème apical, initiation foliaire et phyllotaxie

1982 ◽  
Vol 60 (5) ◽  
pp. 667-673
Author(s):  
Emmeline Vindt-Balguerie
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Shoot Apex ◽  
Apical Meristem ◽  
Cell Number ◽  
Point Of View ◽  
Scanning Electron ◽  
Shape And Size

The shoot apex of the bulbil of Huperzia selago (L.) Bernh. (Lycopodium) has been examined by scanning electron microscope. From an ontogenic point of view, changes in shape and size have been observed in the apical meristem. Successive minimal and maximal areas of this meristem are described during a plastochron. Area and cell number are also quantified with the scanning electron microscope. Only one leaf is initiated at the beginning of each plastochron, and the two contact parastichies observed in the shoot apex of the mature bulbil are two foliar helices.

Studies onTernidens deminutusRailliet & Henry, 1909 (Nematoda) I. External morphology

1973 ◽  
Vol 47 (2) ◽  
pp. 119-126 ◽  
Author(s):  
J. M. Goldsmid ◽  
N. F. Lyons
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Size Range ◽  
Three Dimensional ◽  
Transmitted Light ◽  
External Morphology ◽  
Morphological Studies ◽  
Transmitted Light Microscopy ◽  
Dimensional Picture ◽  
Scanning Electron

The present paper describes the size range ofTernidens deminutusfrom human and baboon hosts in Rhodesia and discusses the possible reasons for the differences noted.Using transmitted light and the scanning electron microscope, the external morphology ofT. deminutushas been re-studied and compared to investigations by other authors using transmitted light microscopy alone.The paper also illustrates the value of the scanning electron microscope in morphological studies in helminthology, especially when used in conjunction with the light microscope, to give an excellent three-dimensional picture of the species under investigation.It is intended to follow this work with further studies on the anatomy, histology, ultrastructure and histochemistry ofTernidens deminutus.

scholarly journals Comparative morphometry and morphology of Anopheles aconitus Form B and C eggs under scanning electron microscope

2004 ◽  
Vol 46 (5) ◽  
pp. 257-262 ◽  
Author(s):  
Anuluck Junkum ◽  
Atchariya Jitpakdi ◽  
Narumon Komalamisra ◽  
Narissara Jariyapan ◽  
Pradya Somboon ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Surface Topography ◽  
Intraspecific Variation ◽  
Chiang Mai ◽  
Morphological Studies ◽  
Scanning Electron

Comparative morphometric and morphological studies of eggs under scanning electron microscope (SEM) were undertaken in the three strains of two karyotypic forms of Anopheles aconitus, i.e., Form B (Chiang Mai and Phet Buri strains) and Form C (Chiang Mai and Mae Hong Son strains). Morphometric examination revealed the intraspecific variation with respect to the float width [36.77 ± 2.30 µm (Form C: Chiang Mai strain) = 38.49 ± 2.78 µm (Form B: Chiang Mai strain) = 39.06 ± 2.37 µm (Form B: Phet Buri strain) > 32.40 ± 3.52 µm (Form C: Mae Hong Son strain)] and number of posterior tubercles on deck [2.40 ± 0.52 (Form B: Phet Buri strain) = 2.70 ± 0.82 (Form B: Chiang Mai strain) < 3.10 ± 0.32 (Form C: Chiang Mai strain) = 3.20 ± 0.42 (Form C: Mae Hong Son strain)], whereas the surface topography of eggs among the three strains of two karyotypic forms were morphologically similar.

Synthesis and Analysis of Carbide-Derived Carbon from TiC by Chlorination

2014 ◽  
Vol 602-603 ◽  
pp. 463-466 ◽  
Author(s):  
Jin Jia ◽  
Yuan Yuan Zhu ◽  
Ya Fei Zhang ◽  
Ruo Yu Chen ◽  
Bao Lin Xing ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Raman Spectroscopy ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carbide Derived Carbon ◽  
Scanning Electron ◽  
Shape And Size

Carbide-derived carbons (CDCs) are produced from carbides by removing non-carbon elements in the process of selective etching. In this paper, CDC was prepared from TiC by chlorination at the temperature range of 600~1100°C. In the chlorinating process, carbide-derived carbon with different microstructure was obtained by controlling the reaction temperature. The structures of CDC were revealed with X-ray diffraction and Raman spectroscopy. The morphologies of CDC were analyzed by scanning electron microscope. From X-ray diffraction analysis, the CDC obtained from TiC in this experiment mainly consisted of amorphous carbon. Basing on scanning electron microscopy, carbide-derived carbon from TiC maintained the shape and size of TiC particles. Keywords: Carbide-derived carbons; chlorination; TiC

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