Xem 1-20 trên 20 kết quả Thermal treatments
  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Effect of thermal treatment on the growth, structure and luminescence of nitride-passivated silicon nanoclusters

    pdf12p sting05 09-02-2012 30 4   Download

  • Heat treatment and surface engineering are seen as crucial elements in the design and manufacture of strategic components in a wide range of market sectors and industries including air, sea and land transportation, energy production, mining, defense or agriculture. This book offers a broad review of recent global developments in an application of thermal and thermochemical processing to modify the microstructure and properties of a wide range of engineering materials.

    pdf420p cucdai_1 16-10-2012 50 19   Download

  • Thermal Analysis is a well-established set of techniques for obtaining qualitative and quantitative information about the effects of various heat treatments on materials of all kinds, including new chemical compounds, plastics, ceramics, alloys, construction materials, minerals, foods and medicines. Heating is performed under strictly controlled conditions and can reveal changes in structure and other important properties of the material being studied. Such studies are of great practical importance in the use of materials....

    pdf155p beobobeo 01-08-2012 35 8   Download

  • The synthesis and characterization of activated carbons (ACs) obtained from lignocellulosic precursors is a topic widely studied by a number of researchers worldwide. In the last decades, an increase has been observed in the number of publications related to the synthesis, modification, characterization and application of ACs obtained from lignocellulosic materials. Particularly, the applications of these carbons are primarily focused in the removal of several inorganic and organic pollutants from water and wastewaters....

    pdf100p qsczaxewd 25-09-2012 24 7   Download

  • This book has been written to present elementary practical and efficient applications in saving energy concept, as well as propose a solitary action for this category of topics. The book aims to illustrate various methods in treatment the concept of thermal insulation such as processes and the attempt to build an efficient passive building model.

    pdf112p orchid_1 25-09-2012 18 5   Download

  • In recent years, heat treatment has been used to prevent the development of chilling injury in fruits and vegetables. The acquired tolerance to chilling seen in treated fruit is related to the accumulation of heat shock proteins (HSPs).

    pdf9p media19 05-03-2013 13 1   Download

  • Bovineb-lactoglobulin was hydrolyzed with trypsin or chymotrypsin in the course of heat treatment at 55, 60 and 65°C at neutral pH. At these temperaturesb-lactoglobulin undergoes signi®cant but reversible structural changes. In the conditions used in the present study,b-lactoglobulinwas virtually insensitive to proteolysis by either enzyme at room temperature, but underwent extensive proteolysis when either proteasewas present during the heat treatment.

    pdf11p research12 29-04-2013 5 1   Download

  • The first section of the book includes the following topics: fusion-based additive manufacturing (AM) processes of titanium alloys and their numerical modelling, mechanism of ?-case formation mechanism during investment casting of titanium, genesis of gas-containing defects in cast titanium products. Second section includes topics on behavior of the (? + ?) titanium alloys under extreme pressure and temperature conditions, hot and super plasticity of titanium (? + ?) alloys and some machinability aspects of titanium alloys in drilling. ...

    pdf240p orchid_1 25-09-2012 34 11   Download

  • The paper presents the first results of study on isolation of curcumin from curcuma longa L. by ultrasonic extraction. The results show that by using ultrasonic technique the extraction efficiency in comparison with the solid-liquid extraction with stirring and thermal treatment will be increased and in the other hand the extraction time will be reduced nearly 90%. In addition, ultrasonic extraction results in reducing cost and decomposed curcumin significantly due to the thermal treatment.

    pdf6p uocvong01 24-09-2015 24 8   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Treatment with gelsolin reduces brain inflammation and apoptotic signaling in mice following thermal injury

    pdf18p panasonic09 12-01-2012 22 5   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Correction: The Fabrication of Nano-Particles in aqueous solution from Oxyfluoride Glass Ceramics by Thermal Induction and Corrosion Treatment

    pdf1p dauphong12 07-02-2012 30 5   Download

  • Titanium oxide ST01, ST31, TiO2 catalysts modified by V5+, N2+ and supported on MCM41 and SiO2 have been used for photooxidation of p-xylene in gas phase. Physicochemical properties of catalysts were determined by the methods of BET Adsorption, Xray Diffraction (XRD), UV-Vis spectroscopy, and atom adsorption spectroscopy (AAS) methods. The photocatalytic activity of catalysts were determined after thermal treatment as well as UV lighting. The common observation is that the higher temperature of treatment the lower conversion of p-xylene obtained.

    pdf11p uocvong02 24-09-2015 14 5   Download

  • In order to maintain economic development and minimize future regional and international conflicts, the United States will need sustainable supplies of high-quality fresh water. Solutions to local water scarcity issues will likely require a combination of approaches, including demand management, improved water storage capacity, water quality protection, and advancements in supply-enhancing water treatment technologies. Desalination technologies can create new sources of freshwater from otherwise impaired waters such as seawater or brackish water.

    pdf85p camnhung_1 14-12-2012 21 4   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: The Fabrication of Nano-Particles in Aqueous Solution From Oxyfluoride Glass Ceramics by Thermal Induction and Corrosion Treatment

    pdf5p sting09 21-02-2012 19 3   Download

  • The tyrosine phenol-lyase fromSymbiobacterium toebiiwas engineered to improve both its stability and catalytic activity by the application of ran-dom mutagenesis and subsequent reassembly of the acquired mutations. Activity screening of the random library produced four mutants with a two-fold improved activity, whereas parallel screening after heat treatment at 65C identified three mutants with half-inactivation temperatures improved by up to 5.6 C.

    pdf8p viettel02 20-02-2013 14 1   Download

  • Proteins tend to form inactive aggregates at high tempera-tures. We show that polyamines, which have a relatively simple structure as oligoamids, effectively prevent thermal inactivation and aggregation of hen egg lysozyme. In the presence of additives, including arginine and guanidine (100 mM), more than 30% of 0.2 mgÆmL )1 lysozyme in sodium phosphate buffer (pH 6.5) formed insoluble aggre-gates by heat treatment (98C for 30 min). 1

    pdf8p fptmusic 12-04-2013 12 1   Download

  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 18 ENVIRONMENTAL CONTROL AND ENERGY CONSERVATION ENVIRONMENTAL CONTAMINATION ANALYSIS AND PREVENTION 18.2 Recycle Profit Potentials in Municipal Wastes 18.2 Choice of Cleanup Technology for Contaminated Waste Sites 18.4 Cleaning Up a Contaminated Waste Site Via Bioremediation 18.10 Process and Effluent Treatment Plant Cost Estimates by Scale-Up Methods 18.16 Work Required to Clean Oil-Polluted Beaches 18.73 Sizing Explosion Vents for Industrial Structures 18.75 Industrial Building Ventilation for Environmental Safety 18.

    pdf164p medinova 26-10-2010 80 42   Download

  • Glassware must be scrupulously cleaned. Clean all glassware as soon as possible 3 after use by rinsing with the last solvent used in it. Solvent rinsing should be followed by detergent washing with hot water, and rinses with tap water and distilled water. The glassware should then be drained dry, and heated in a muffle furnace at 400°C for 15-30 minutes. Some thermally stable materials may not be eliminated by this treatment. Solvent rinses with acetone and pesticide quality hexane may be substituted for the muffle furnace heating.

    pdf17p cao_can 02-01-2013 20 5   Download

  • Peres et al. Nanoscale Research Letters 2011, 6:378 http://www.nanoscalereslett.com/content/6/1/378 NANO EXPRESS Open Access Effect of Eu-implantation and annealing on the GaN quantum dots excitonic recombination Marco Peres1, Sérgio Magalhães1,2, Vincent Fellmann3, Bruno Daudin3, Armando José Neves1, Eduardo Alves2,4, Katharina Lorenz2,4 and Teresa Monteiro1* Abstract Undoped self-assembled GaN quantum dots (QD) stacked in superlattices (SL) with AlN spacer layers were submitted to thermal annealing treatments.

    pdf6p dauphong13 09-02-2012 19 3   Download

  • Glassware must be scrupulously cleaned. Clean all glassware as soon as 3 possible after use by rinsing with the last solvent used in it. Solvent rinsing should be followed be detergent washing with hot water, and rinses with tap water and distilled water. The glassware should then be drained dry, and heated in a muffle furnace at 400°C for 15-30 minutes. Some thermally stable materials, such as PCBs, may not be eliminated by this treatment. Solvent rinses with acetone and pesticide quality hexane may be substituted for the muffle furnace heating.

    pdf8p cao_can 02-01-2013 26 2   Download

Đồng bộ tài khoản