ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 2020-2022
  • 2015-2019  (1,155)
  • 1970-1974
  • 2018  (1,155)
Collection
Keywords
Publisher
Language
Years
  • 2020-2022
  • 2015-2019  (1,155)
  • 1970-1974
Year
  • 1
    Unknown
    Contributions to Mineralization (2018)
    Rijeka : InTech
    Details
    Keywords: mineralogy ; economic geology ; mining engineering ; environmental impacts ; mining industry
    Description / Table of Contents: Chapter 1: Petrology, Geochemistry and Mineralogy of Greisens Associated with Tin-Tungsten Mineralisation: Hub Stock Deposit at Krásno–Horní Slavkov Ore District, Czech Republic by Miloš René --- Chapter 2: Zechstein-Kupferschiefer Mineralization Reconsidered as a Product of Ultra-Deep Hydrothermal, Mud-Brine Volcanism by Stanley B. Keith, Volker Spieth and Jan C. Rasmussen --- Chapter 3: Lead-, Zinc-, and Iron-Sulfide Mineralization from Northern Iraq by Ali Ismail Al-Juboury, Waleed S. Shingaly, Elias M. Elias and Mohsin M. Ghazal --- Chapter 4: Geology, Textural Study, Ore Genesis and Processing of the Tabuaço Tungsten Deposit (Northern Portugal) by Yann Foucaud, Bénédicte Lechenard, Philippe Marion, Inna Filippova and Lev Filippov --- Chapter 5: Lead Isotopes as Tracers of Metal Sources and Timing of the Carbonate-Hosted Pb-Zn Deposits in the Nappes Zone, Northern Tunisia by Nejib Jemmali and Fouad Souissi --- Chapter 6: Trace Elements in Coal Gangue: A Review by Shaoqing Guo --- Chapter 7: Mineralization: Evidence from Fission Track Thermochronology by Wanming Yuan and Ke Wang --- Chapter 8: Statistical Approach to Mineral Engineering and Optimization by Mehmet Deniz Turan --- Chapter 9: Expected Return on Capital in Mining Industry by Aneta Michalak
    Pages: Online-Ressource (224 Seiten)
    ISBN: 9789535137498
    URL: https://www.intechopen.com/books/contributions-to-mineralization
    Language: English
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    E-BOOK
  • 2
    facet.materialart.
    Unknown
    Shock Wave Effect on Micromechanics Properties of Sn-Ag-Cu solder (SAC 387) via Nanoindentation (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-11-07
    Description: A variety of Sn-Ag-Cu solder alloys have been proposed and recommended for use in industrial organizations for example Sn-95.5Ag3.8Cu-0.7 (SAC 387) by the European Consortium Brite-Euram in the European Union. In this study an effect of shock wave on micromechanics properties of SAC 387 solder was investigated via nanoindentation approach. Solder joint of SAC 387 on copper substrate was prepared by hand soldering techniques. Then soldered samples were exposed to shock wave at different distance of 1 m, 2 m and 3 m. The shock wave test was conducted using 500 g of trinitrotoluene (TNT). Hardness value of SAC 387 decreased from 300 MPa to 130 MPa as well as reduced modulus drop from 115 GPa to 43 GPa after exposure. However the hardness and reduced modulus increased with increasing distance of the shock wave. The phenomenon revealed that shock wave deteriorated the micromechanics properties of soldered samples.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    IJERPH, Vol. 15, Pages 2018: The Sensitivity, Specificity and Accuracy of Warning Signs in Predicting Severe Dengue, the Severe Dengue Prevalence and Its Associated Factors (2018)
    MDPI Publishing
    Details
    Publication Date: 2018-09-16
    Description: IJERPH, Vol. 15, Pages 2018: The Sensitivity, Specificity and Accuracy of Warning Signs in Predicting Severe Dengue, the Severe Dengue Prevalence and Its Associated Factors International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15092018 Authors: Mohd Hanief Ahmad Mohd Ismail Ibrahim Zeehaida Mohamed Nabilah Ismail Muhammad Amiruddin Abdullah Rafidah Hanim Shueb Mohd Nazri Shafei Objectives: To study Malaysian dengue clinical practice guideline (CPG) warning signs (WS) in predicting severe dengue (SD) and its associated factors among confirmed cases presented to a teaching hospital in north-eastern Malaysia in 2014. Methods: A cross-sectional study was performed in February 2015 using secondary data acquired from the hospital records. There were 2607 confirmed dengue cases presented to Hospital Universiti Sains Malaysia (HUSM) in 2014. Seven hundred patients were selected after proportionate stratified random sampling conducted according to the number of cases in 12 different months in 2014. Data were collected and analysed using SPSS version 22.0. Results: Severe dengue outcomes represented 4.9% of cases. The prevalence of any of WS in SD was 91.2%. The most common WSs prior to SD were persistent vomiting (55.9%), and abdominal pain/tenderness (52.9%). The most sensitive warning sign in detecting SD was abdominal pain (59%). Specificity of individual WS were generally good, especially of clinical fluid accumulation (99%), hepatomegaly (98%) and mucosal bleeding (93%). Factors associated with SD were persistent vomiting (Adjusted odds ratio (aOR)): 2.41), mucosal bleeding (aOR: 4.73) and haematocrit rise with rapid platelet drop (aOR: 2.74). Conclusion: A focus on sensitivity, specificity, predictive values and association of a number of particular WS should be emphasized in order to better predict severe dengue outcomes.
    Print ISSN: 1661-7827
    Electronic ISSN: 1660-4601
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by MDPI Publishing
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Analysis of pedestrian walking characteristics at vertical facilities in underground train station (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-05-12
    Description: Kuala Lumpur is the national capital of Malaysia as well as the center of attraction for people looking for jobs. Thus, in the future people will tend to use public transport including the Light Rail Transit (LRT) more often than driving their vehicle. This is especially so due to critical traffic congestion on the road especially during peak hours. The increasing population in Kuala Lumpur could lead the LRT stations to become more crowded form day to day due to excessive demand. Due to this problem, the facilities provided will not be enough and suitable to cater the space demand. Unfortunately, the limited study was done regarding the pedestrian spaces and facilities at underground LRT in Malaysia. Thus, this paper aims to establish the fundamental understanding of pedestrian behavior at vertical facilities in underground train station.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    Effect of Six Month Storage on Physicochemical Analysis and Antioxidant Activity of Several Types of Honey (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-11-01
    Description: Honey composition could change during storage, which might affect the quality of honey. Subsequently, it could reduce the honey commercial value. However, data on the effect of the storage on several types of local honey is still lacking. Thus, in this study, moisture content, pH and antioxidant level of honey stored at 4°C were analysed after six-month of the storage. Initially, physicochemical properties (moisture, electrical conductivity, ash content, pH, free acidity and hydroxymethylfurfural (HMF) level) and antioxidant levels of five local honey samples (Tualang, Gelam, Pineapple, Acacia and Kelulut honey) and Manuka honey as a control were determined. Afterwards, honey samples were stored at 4°C for six months and their moisture content, pH and antioxidant levels were monitored monthly. Physicochemical properties were measured based on the standard method set by the International Honey Commission (IHC). Antioxidant activity was determined based on previous studies. Most o...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    A Comparative Study of Different Positioning of Reinforced Concrete Shear Walls in Soft Storey Building Subjected to Acheh Eartquake Event (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-11-09
    Description: The system of shear wall as an additive in retrofitting of soft storey structure has been investigated in previous and present research to improve the strength of structures due to seismic load. The aim of this research is to conduct comparative study on Equivalent Static Analysis (ESA), Response Spectrum Analysis (RSA) and Time History Analysis (THA) of structure between reference sample and shear wall systems was performed in order to determine the strength and stiffness of soft storey structure. The locations and shapes of shear wall system were used as retrofitting method. The retrofitting of soft storey structure was done for fives (5) models consist of one (1) model without shear wall as reference sample and the other four (4) models of different location and shape of shear wall systems. The models were tested by using SAP200 computer software to performed strength of structure. The models had been checking by value of lateral displacement and base shear resistance. Based ...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    Retrofitting of soft storey building by using different bracing system due to earthquake load (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-11-09
    Description: In this research, one residential building of soft storey situated at Seremban, Negeri Sembilan is selected. SAP 2000 which is structural analysis software is being used to determine the maximum displacement and base shear of the soft storey. Four different types of model are introduced to do the modeling. Acheh, Indonesia earthquake data is considered for time history analysis. The comparison of these models for different type of bracing system like X bracing type and V bracing type is carried out. Based on this comparative study, it can conclude that model 3 which is V bracing type is the best and effective method of bracing system for soft storey building. From the result obtained, it shown that V bracing has the lowest value for maximum displacement compared other 3 models. In addition, V bracing type also showed the lowest value of base shear. Thus, it proved that V bracing type reduces the maximum displacement and base shear of the soft storey building.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    facet.materialart.
    Unknown
    The study of Phosphorus distribution at Putrajaya Wetland (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-04-07
    Description: This study is concerning phosphorus distribution in Putrajaya Wetland. Phosphorus is one of the important component in nutrients for living things be it aquatic or non – aquatic organisms. Total phosphorus (TP) results will give some information on the trophic status of surface water in water bodies. The focus of this study is to determine the total phosphorus concentration in Putrajaya Wetland which is in the inlet of the wetland then outlet of the wetland (Central Wetland Lake). The water sample is taken from Putrajaya Wetland and the test was conducted in the laboratory. The result from this study shows the results for total phosphorus according to month, sampling station and cells. Lowest total phosphate at the Central Wetland compare with all the wetland arms cells.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 9
    facet.materialart.
    Unknown
    Effect of stabilization temperature during pyrolysis process of P84 co-polyimide-based tubular carbon membrane for H 2 /N 2 and He/N 2 separations (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-04-07
    Description: In this study, the effect of stabilization temperature on the performance of tubular carbon membrane was being investigated. P84 co-polyimide-based tubular carbon membrane will be fabricated through the dip-coating technique. The tubular carbon membrane performance can be controlled by manipulating the pyrolysis conditions which was conducted at different stabilization temperatures of 250, 300, 350, 400, and 450°C under N 2 environment (200 ml/min). The prepared membranes were characterized by using scanning electron microscopy (SEM), x-ray diffraction (XRD), and pure gas permeation system. The pure gas of H 2 , He, and N 2 were used to determine the permeation properties of the carbon membrane. The P84 co-polyimide-based tubular carbon membrane stabilized at 300°C demonstrated an excellent permeation property with H 2 , He, and N 2 gas permeance of 1134.51±2.87, 1287.22±2.86 and 2.98±1.28GPU, respectively. The highest H 2
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Nickel zinc ferrite thick film as substrate overlay for improved performance of microstrip patch antenna (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-07-12
    Description: In this paper, nickel zinc ferrite (NZF) nanopowder was mixed with organic vehicle which consists of linseed oil, m-xylene and α-terpineol. Then the mixture was sonicated for 1 hour at 40°C in order to obtain homogenous paste, followed by printing it onto FR4 substrate using the screen printing technique to form the NZF thick film layer before dried at 100°C and later fired at 200°C. A basic square shape patch antenna by using silver paste was printed onto the NZF thick film layer and was compared with another patch antenna which was been printed without the NZF layer. The results showed that the antenna with NZF thick film layer has return loss of -10.97dB, resonant frequency 6.42GHz, bandwidth 3.9 and Q factor of 1.646, which is better compared to the antenna without the layer by 32.81%, 3.22%, 86.60% and 44.69% respectively.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...