Essential metals

Part 1 of ebook "Metal cutting (Fourth edition)" provides readers with contents including: Chapter 1 - Introduction historical and economic context; Chapter 2 - Metal cutting operations and terminology; Chapter 3 - The essential features of metal cutting; Chapter 4 - Forces and stresses in metal cutting; Chapter 5 - Heat in metal cutting; Chapter 6 - Cutting tool materials I, high speed steels; Chapter 7 - Cutting tool materials II, cemented carbides;...

244p dongmelo 20-05-2024 3 1   Download

Ebook "Transition metal organometallic chemistry" serves as a concise guide to essential topics in Transition Metal Organometallic Chemistry for senior undergraduate and graduate students; it blends qualitative theoretical approach with experimental description of the facts.

105p coduathanh1122 27-03-2024 2 1   Download

Ebook "Electron microscopy in heterogeneous catalysis (Series in Microscopy in materials science)" addresses a number of issues that are fundamental to the understanding of heterogeneous catalysis by oxides and supported metals. The properties of a catalyst are governed by its microstructure and chemistry on an atomic scale, and electron microscopy methods are essential to directly analyze these properties.

246p coduathanh1122 27-03-2024 6 1   Download

Ebook "The Periodic table (Essential chemistry series)" is a chart that includes all of the natural and artificial elements known in the universe. Elements are basic building blocks of matter. The periodic table is more than a list of the elements. It is also a guide and tool to understanding all chemical reactions and the materials involved in building the Earth and the universe. This book will describe the history and science behind the periodic table and take an in-­depth look at all the major groups of elements.

121p coduathanh1122 27-03-2024 4 1   Download

Ebook "Stress responses of lactic acid bacteria (Food microbiology and food safety series)" will serve as an essential guidebook to researchers in the field, industry professionals, and advanced students in the area. The exploration of stress responses in lactic acid bacteria began in the early 90s and revealed the differences that exist between LAB and the classical model microorganisms.

540p manmanthanhla0201 26-02-2024 7 1   Download

Part 1 book "Veterinary toxicology for Australia and New Zealand" includes content: Introduction and definitions; essentials of toxicokinetics for veterinary practitioners; emergency care and stabilization of the poisoned patient; antidotes; vulnerable patients; sample collection, handling, and submission in toxicology; poisons by toxic action; insecticides and acaricides; molluscicide; vertebrate pesticides; herbicides and fungicides; human pharmaceuticals; household foods and products; metals; metalloids.

296p muasambanhan05 16-01-2024 4 0   Download

Part 2 book "Small animal toxicology essentials" includes content: Insecticides; other pesticides; plants; dietary supplements and herbs; zootoxins; mycotoxins and mushrooms; food associated intoxications; drugs of abuse; otc drugs; prescription drugs; household and industrial toxicants; metals and minerals; miscellaneous toxicants.

210p muasambanhan03 05-01-2024 4 2   Download

Carpal Tunnel Syndrome (CTS) is a common pathology that affects the quality of human life. It is essential to promote clinical intervention studies. Our initial step in this study focused on the cure for CTS and the safety of Laser Acupuncture (LA), which is a type of acupuncture uses low-level laser instead of metal acupuncture needles.

9p vikissinger 21-12-2023 7 2   Download

Microwave absorbing materials (MAMs) are essential materials for mitigating the bad effects of electromagnetic interference and microwave pollution. SrFe12-2xCux/2Cox/2TixO19 samples showed their superior microwave absorption performances in both reflection loss and effective absorption bandwidth (EAB) values for the normal incident angle of the microwave. Between these parameters, EAB values expressed how large a frequency the MAM could be used for practical applications.

9p nhanchienthien 25-07-2023 7 3   Download

The pollution of heavy metals in ore mining areas is severe at present in Vietnam as well as in the world. Assessing the level and risk of contamination of arsenic (As) in the soil in the ore mining area is essential for environmental management.

9p viironman 02-06-2023 5 2   Download

This study investigated trace essential metals (Cu, Zn and Cr) and non-essential metals (Pb, Cd and Hg) in water, sediment and tissues of water spinach, snake head fish and swamp eel from the Saigon River. Sampling was conducted from January to December 2004 at three sites. Three water and sediment samples, edible parts of twenty water spinach (Ipomea aquatica) samples (leaves and stems), twenty snake head fish (Channa striata) and twenty swamp eels (Monopterus albus) were collected at each site.

148p runthenight07 01-03-2023 8 2   Download

Water treatment has been an essential issue with the increasing population over 40 years. Researchers center on the major organic pollutants, such as dyes, pesticides, and pharmaceutical products. Photocatalytic degradation is one of the promising methods for aquatic organic pollutant treatment. Over the years, scientists have been working on developments for photocatalysts to enhance their pollutant degradation performances.

18p lyhuyenthu 31-01-2023 4 2   Download

The re-sequencing of C. angulata has revealed many polymorphisms in candidate genes related to adaptation to abiotic stress that are not present in C. gigas; these genes, therefore, are probably related to the ability of this oyster to retain high concentrations of toxic heavy metals.

12p vihagrid 30-01-2023 8 3   Download

Membranes and filters are essential devices, both in the laboratory for separation of media, solvent recovery, organic solvent and water filtration purposes, and in industrial scale applications, such as the removal of industrial pollutants, e.g. heavy metal ions, from water.

10p viginny 30-12-2022 8 2   Download

It is essential mean to adsorptive remove organic pollutants such dyestuff for water remediation. Herein in situ modification of the classic metal-organic framework ZIF-67 with –SO3 groups was easily achieved by the efficient adsorption of multi-sulfonated dyes due to the coordinative interaction between the unoccupied Co(II) of ZIF-67 and –SO3 of the dyes.

9p vironald 15-12-2022 3 2   Download

In this paper, the protective role of melatonin in counteracting metal-induced free radical generation was highlighted. Using the HPLC-FLD technique melatonin was identified and quantified in the roots and leaves of lemon balm (Melissa officinalis L.), grown under photoperiod conditions. Furthermore, the response of plants pre-treated with exogenous 0.1 mM melatonin to the increased zinc (Zn) and cadmium (Cd) concentrations was observed, with changes in mineral (Ca, Mg), physiological and antioxidant status of the plant during heavy metals stress.

12p tudichquannguyet 29-11-2021 13 1   Download

The results showed that Pt particles, deposited by dc-magnetron gun, surround the large Co-clusters deposited by rf-magnetron gun. In addition, the increase of Co content led to an increase in the electrochemical active surface area (EASA) from 23.75 m2 /gPt to 47.54 m2 /gPt for pure Pt and Pt:Co (1:3), respectively, which corresponded the improvement of the utilization of Pt by a factor of 1.91.

17p tudichquannguyet 29-11-2021 9 1   Download

Ferrous iron (Fe) and zinc (Zn) at high concentration in the soil cause heavy metal toxicity and greatly affect rice yield and quality. To improve rice production, understanding the genetic and molecular resistance mechanisms to excess Fe and Zn in rice is essential. Genome-wide association study (GWAS) is an effective way to identify loci and favorable alleles governing Fe and Zn toxicty as well as dissect the genetic relationship between them in a genetically diverse population.

15p vilarryellison 29-10-2021 18 1   Download

The protean chemical properties of mercury have long made it attractive for diverse applications, but its toxicity requires great care in its use, disposal, and recycling. Mercury occurs in multiple chemical forms, and the molecular basis for the distinct toxicity of its various forms is only partly understood. Global transcriptomics applied over time can reveal how a cell recognizes a toxicant and what cellular subsystems it marshals to repair and recover from the damage. The longitudinal effects on the transcriptome of exponential phase E.

24p vilarryellison 29-10-2021 14 0   Download

Molybdenum (Mo) is an essential micronutrient for almost all biological systems, which holds key positions in several enzymes involved in carbon, nitrogen and sulfur metabolism. In general, this transition metal needs to be coordinated to a unique pterin, thus forming a prosthetic group named molybdenum cofactor (Moco) at the catalytic sites of molybdoenzymes.

14p vitzuyu2711 29-09-2021 9 1   Download