In order to improve our understanding of the origin and production processes methylamine in atmosphere its contribution particulate WSON, simultaneous measurements size-segregated aerosols gas phase were conducted at a forested site Yamanashi Prefecture, Japan, over one year. The concentration atmospheric that is sum phase, coarse-mode, fine-mode particles was 0.962 ng-N m−3 on average. About 7...

Hydrogen sulfur (H2S) là một trong những khí độc và có mùi trứng thối khó chịu khi chúng hiện diện không khí. Mục tiêu của nghiên cứu này phân lập tuyển chọn vi khuẩn khả năng oxid hóa lưu huỳnh từ chất thải chăn nuôi heo để xử lý hôi. Kết quả đề tài đã được 49 chủng các trại ở Đồng bằng sông Cửu Long. Khảo sát hoạt tính cho thấy, 30/49 (chiếm 61,22%) huỳnh, đó 2 T5 T11 cao nhất với nồng độ sul...

For loop integrals the standard method is reduction. A well-known reduction for one-loop Passarino-Veltman (PV) Inspired by recent paper [B. Feng, T. Li, and X. J. High Energy Phys. 09 (2021) 081.] where tadpole coefficients have been solved, in this we show same technique can be used to give a complete integral any integrals. The differential operator an alternative version of PV-reduction met...

The geochemical characteristics of the hot spring waters in the Rehai and Ruidian geothermal fields, Tengchong County, Yunnan Province, China, are described and their possible environmental impact assessed. The results show that the alkaline spring waters contain high levels of K, Na, F, Cl, SiO2, whereas the only acidic spring water in Rehai geothermal field contains high levels of SO42−, Mn a...

A quantitative analysis of the Cl- dependence of growth of Halobacillus halophilus was performed. Optimal growth rates were obtained at Cl- concentrations of between 0.5 and 2.0 M, and the final yield was also strictly dependent on the Cl- concentration. Br- but not I-, SO42-, NO2-, SO2-, OCN-, SCN-, BO2-, or BrO3- could substitute for Cl-. To analyze the function of chloride, chloride concentr...

Silicon-substituted calcium phosphate (Si-CaP) was developed in our laboratory as a biomaterial for delivery in bone tissue engineering. It was fabricated as a 3D-construct of scaffolds using chitosan-trisodium polyphosphate (TPP) cross-linked networks. In this study, heparin was covalently bonded to the residual -NH2 groups of chitosan on the scaffold applying carbodiimide chemistry. Bonded he...

A novel dot-like Cu2O-loaded TiO2/reduced graphene oxide (rGO) nanoheterojunction was synthesized via UV light reduction for the first time. Cu2O with size of ca. 5 nm was deposited on rGO sheet and TiO2 nanosheets. The products were characterized by infrared spectroscopy, Raman spectrum, UV-Vis diffuse reflectance spectra, XPS techniques, photoluminescence spectra. The results demonstrated tha...

Leachate and groundwater samples were collected from Vendipalayam, Semur and Vairapalayam landfill sites in Erode city, Tamil Nadu, India, to study the possible impact of leachate percolation on groundwater quality. Concentrations of various physicochemical parameters including heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Fe and Zn) were determined in leachate samples and are reported. The concentrati...

Abstract Exploring the similar behavior of black hole systems with different scales will provide insight into unified physical laws systems. Here, we report a special spectral state transition process in blazar OT 081, which is driven by supermassive hole. Based on X-ray flux versus photon index distribution, stacked average spectra, L 2500 Å − α ox parameters, and broadband energy distribution...

In this study, the water-soluble inorganic ions (WSIIs) composition of fine particulate matter (PM2.5) was measured in northern Nanjing city from 2015 to 2021. NH4+, NO3− and SO42− concentrations dominated total WSIIs (Na+, K+, Mg2+, Ca2+, Cl−, SO42−), accounting for 87.8%. The nitrate with highest average concentration among all 11.0 μg·m−3. Total were higher winter lower summer, levels Decemb...