Electron microscopy

In this study, graphene nano particles were synthesized chemically - modified Hummer method and used as the adsorbent to remove toluene and benzene in environment. Obtained nano adsorbents were characterized using Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier transform infrared resonance spectroscopy (FTIR), BrunauerEmmett-Teller analysis (BET), X-ray diffraction (XRD) and X ray photoelectron spectroscopy (XPS).

5p vipatriciawoertz 31-05-2022 8 0   Download

Đặc tính của sản phẩm cuối được đánh giá bằng các phương pháp phân tích hóa lý hiện đại như xác định diện tích bề mặt riêng BET (Brunauer-Emmett-Teller), kính hiển vi điện tử quét SEM (Scanning electron microscopy), kính hiển vi điện tử truyền qua HR-TEM (High-resolution Transmission Electron Microscope), phân tích nhiệt trọng trường TGA (Thermogravimetric Analysis).

5p viirenerosenfeld 26-05-2022 8 1   Download

Low-cost, nanoscale zinc hexacyanoferrate (ZnHF), an effective adsorbent for cesium (Cs+) and strontium (Sr2+) removal, was prepared using the chemical co-precipitation method. The Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS) spectra, and high-resolution transmission electron microscopy (HRTEM) images were performed to determine the morphologies of ZnHF.

14p viellenkullman 16-05-2022 5 1   Download

Antibiotics are commonly added to livestock feeds in sub-therapeutic doses as growth promoters and for prophylaxis against pathogenic microbes, especially those implicated in diarrhoea. While this practice has improved livestock production, it is a major cause of antimicrobial resistance in microbes affecting livestock and humans.

9p vigandhi 23-02-2022 1 0   Download

Invasive micropapillary carcinoma (IMPC) is a rare malignant breast tumor and a variant form of invasive ductal carcinoma that is an aggressive neoplasm of the human breast and canine mammary gland. The importance of the tumor microenvironment in cancer development has gradually been recognized, but little is known about the cell types outlining the cystic space of canine IMPC.

13p vidarwin 23-02-2022 7 0   Download

The present report describes a case of pseudocowpox virus (PCPV) infection in a seven-year-old female bison euthanized due to a history of declining condition and sores on the vulva and udder.

6p vidarwin 22-02-2022 8 0   Download

Petrified wood samples are found within terrestrial sediments belonging to the Late Oligocene-Early Miocene Danişmen Formation in Malkara-Keşan located in the southwest of the Thrace Basin. The petrified wood in both regions is usually silicified and partly coalified. The silicification of the Tertiary wood in the Malkara-Keşan region is associated with volcanic activity and coeval sedimentation. Thin sections from petrified wood samples were taken as transverse, tangential, and radial sections.

22p tanmocphong 29-01-2022 12 0   Download

The physico-chemical properties of biochars were systematically investigated with organic elemental analyser, scanning electron microscopy, N2 adsorption measurement, IR spectroscopy and X-ray photoelectron microscopy.

9p thebadguys 15-01-2022 2 0   Download

This study pointed out that growing an intercrop and retaining its residues as in situ mulch between the cotton rows can improve soil condition by increasing soil microstructure, water stable aggregation and infiltration rate, and reducing run-off and soil loss.

5p thebadguys 15-01-2022 1 0   Download

The aim of the study was to show the methodological influence of the sieving process on the particle-size distribution (PSD) with focus on the metal distribution within RDS.

11p thebadguys 15-01-2022 6 0   Download

This article proposes various techniques employed in improving the tool life of ceramic cutting insert as compared to commercial cutting tool. Experimental tests were carried out to check the efficiency of one of the proposed techniques using ISO 3685 standard. The results revealed that notch and flank wears were dominant morphology during cutting process.

5p viericschmid 12-01-2022 4 0   Download

The metal-organic framework MIL-100(Fe) was synthesized by the green process using the ultrasonic method and water. By using this approach, the energy consumption was reduced by 100 times compared to the hydrothermal method. The prepared MIL-100(Fe) was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and BET surface area measurements.

7p vihassoplattner 04-01-2022 11 0   Download

This study was carried out using light microscope (LM) and scanning electron microscopy (SEM). Pollen morphology of this genus is fairly uniform. Generally radially symmetrical apolar, mostly spheroidal, pantoporate.

7p schindler 30-12-2021 1 0   Download

A new species of the Macrobiotus hufelandi group is described from Poland. An integrative taxonomic approach was applied by combining morphological and morphometric analysis imaging under phase contrast and scanning electron microscopy with molecular analysis (four molecular markers) to unambiguously support the establishment of the new species. The specimens of Macrobiotus hannae sp. nov. are similar to three taxa of the Macrobiotus hufelandi complex: Macrobiotus hufelandi C.A.S. Schultze, 1834; M. punctillus Pilato, Binda & Azzaro, 1990; and M. joannae Pilato & Binda, 1983.

18p dolomite36 30-12-2021 3 0   Download

In the present study, scanning electron microscopy was used to investigate the ultrastructure of sensilla present on the antennae of male and female Zygogramma bicolorata. The antennae in this insect consist of the scape, pedicel, and nine flagellomeres. Six types of sensilla were identified: sensilla trichodea type 1 and 2 (ST1, ST2), sensilla cavitae (SCa), sensilla chaetica (SCh), and sensilla basiconica type 1 and 2 (SB1, SB2). Sensilla were characterized on the basis of their size and density to find out whether sexual dimorphism exists in this species or not.

7p dolomite36 30-12-2021 0 0   Download

Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae) which develops inside the grain, is an aggressive pest of stored grains. Here, we evaluated the efficiency of diatomaceous earth (DE), Diatomita CI/325 CX, and dolomite (DOL), Dolomita Dr. Kanyo, against S. zeamais reared on corn under laboratory conditions and observed external alterations on treated insects using scanning electron microscopy (SEM). Insects treated with both DE and DOL were impregnated with particles on the body surface, and they showed 100% mortality after 10 days of exposure.

8p dolomite36 30-12-2021 1 0   Download

In this study, toxic effects caused by the degradation of fluoxastrobin, which is a commonly used fungicide where newly synthesized manganese or sulfur-doped TiO2 nanoparticles exist were evaluated. The characterization study of nanoparticles was performed by scanning an electron microscopy (SEM), X-ray diffractometry, Brunau–Emmet–Teller analysis, X-ray fluorescence spectroscopy, and UV–Vis (ultraviolet–visible) reflectance spectra.

14p dolomite36 30-12-2021 1 0   Download

In this study we extracted bioactive ingredients from fruiting bodies of Laetiporus sulphureus with different solvents and tested the antimicrobial and antitumor activities. The predominant lipid composition of the fruiting bodies was studied with GC–MS and revealed a high amount of oleic acid, octadecenoic acid and ergosterol derivatives.

9p schindler 30-12-2021 2 0   Download

The crystal transformation process of magnesium carbonate hydrate by the reaction of magnesium sulfate (MgSO4) with ammonium carbonate [(NH4)2CO3] was investigated. MgSO4 is one of the main magnesium resources of the Lop Nur salt lake in the Xinjiang Autonomous Region of China. Magnesium carbonate hydrates with different chemical compositions were prepared. The transformation process of the 2 crystals, MgSO4 and (NH4)2CO3, was analyzed by Raman spectroscopy, and the associated changes in crystal morphology were observed by scanning electron microscopy.

11p langthannam 29-12-2021 6 0   Download

The adsorption equilibrium of water vapor on different adsorbent materials has been studied. Small grains of commercial activated carbon and alumina, with a diameter of d g = 1.5 × 10−3 m, were impregnated with a hygroscopic salt (calcium chloride) to improve the performance of these materials. The main characteristics of the new composite materials were obtained by adsorption/desorption of nitrogen at 77 K and salt distribution on the adsorbent surface was shown using scanning electron microscopy.

8p langthannam 29-12-2021 4 0   Download