cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/bwjaw6
title: The discovery and description of a new species of Bent-toed Gecko of the Cyrtodactylus pulchellus complex (Squamata: Gekkonidae) from the Langkawi Archipelago, Kedah, Peninsular Malaysia

description: This dataset contains the digitized treatments in Plazi based on the original journal article Quah, Evan S. H., Grismer, L. Lee, Wood, Perry L., Sah, Shahrul Anuar Mohd (2019): The discovery and description of a new species of Bent-toed Gecko of the Cyrtodactylus pulchellus complex (Squamata: Gekkonidae) from the Langkawi Archipelago, Kedah, Peninsular Malaysia. Zootaxa 4668 (1): 51-75, DOI: https://doi.org/10.11646/zootaxa.4668.1.3
DOI: 10.21227/6cwj-nh36
title: Data table used for figures of merit plotting

description: The following dataset summarizes key figures in reported photonic MEMS devices. The data was used to categorize devices, define and plot key figures of merit relevant to the field of photonic MEMS for scalable integrated circuits, as discussed in the invited review article "MEMS for Photonic Integrated Circuits".
DOI: 10.5281/zenodo.3264886
title: 1X4 radio channel data at 3.42 GHz for device-free human sensing

description: Datasets for <em>CAMPAIGN-I and CAMPAIGN-II </em>from paper 'Beamsteering for Ad-Hoc Recognition of Multi-Human Targets Performing Distinct Activities'. The datasets belong to the Radiosense project. '.
DOI: 10.5281/zenodo.3264887
title: 1X4 radio channel data at 3.42 GHz for device-free human sensing

description: Datasets for <em>CAMPAIGN-I and CAMPAIGN-II </em>from paper 'Beamsteering for Ad-Hoc Recognition of Multi-Human Targets Performing Distinct Activities'. The datasets belong to the Radiosense project. '.
DOI: 10.5281/zenodo.3416404
title: Supplementary material for the publication "Copper mining: 100% solar electricity by 2030?"

description: This is a supplementary material to the publication "Copper mining: 100% solar electricity by 2030?" by Jannik Haas, Simón Moreno-Leiva, Tobias Junne, Po-Jung Chen, Giovanni Pamparana, Wolfgang Nowak, Willy Kracht, and Julián Ortiz. This file contains the main inputs used. For the reasoning and assumptions behind these numbers, as well as the origin of these datasets, please consult the main article.
DOI: 10.14457/cu.the.2009.1931
title: Alkali-catalyzed transesterification of waste cooking oil with cosolvent

description: To study the effect factors of biodiesel synthesis from waste cooking oil (WCO) used in food frying using transesterification reaction. The series of experiment were carried out by using potassium hydroxide with 2.6, 2.9 and 3.1 wt% potassium hydroxide to WCO between 10, 15 and 30 minutes and WCO to methanol molar ratio 1:9. In addition, the thesis also investigated cosolvent of biodiesel synthesis in order to accelerate the reaction rate by improving the miscibility of methanol and WCO by the cosolvent. Tetrahydrofuran (THF), Methyl Tertiary Butyl Ether (MTBE) and diethyl ether (DEE) was used as a cosolvent due to they are miscible in both methanol and WCO, cheap price, non-toxic, inert to the reaction and easy to remove from the product due to their boiling point are close to methanol. The experiments were carried out by using methanol to cosolvent 1:0.2 by mole. The experiment result showed that potassium hydroxide 2.6 wt% is suitable for the reaction. From the experiments at 400 rpm found that the maximum methyl ester contents obtained from the reaction at 60 degree Celsius, 30 minutes were 92.8% for the reaction without cosolvent. While methyl ester contents from the reaction with THF, MTBE and DEE cosolvent at the same condition are 95.8%, 93.8% and 94.0% respectively.
DOI: 10.14457/cu.the.2009.1932
title: Impact of voltage dip and protection system operation on electrical distribution system reliability

description: This thesis presents the impact of voltage dip and protection system operation on electrical distribution system reliability. There are two parts of analysis in this thesis. The first part concerns the impact analysis of protective devices on system reliability. In general, using protective devices on the system e.g. Fuses, disconnecting switches, and recloser can help the system its reliability improves. The analysis will be done based on three cases of protection scheme, i.e. fuses as lateral protection, fuses and disconnecting switches, and fuse-recloser coordination. It will be shown in this thesis that all of these schemes have great impact on system reliability, a large amount of energy can be saved, and a number of interruptions can be avoided.The second part concerns the analysis of the impact of voltage dip on system reliability. In the first analysis, it can be known that using protective devices can system reliability improve. In that case, it is just assumed that all the remaining customers can with stand the voltage dip. However, in practice, some customers can not tolerate the voltage dip, and they will be cut off from the supply. Therefore, the impact of voltage dip on customer interruptions should not be neglected and have to be taken into account. This thesis shows that the impact of the voltage dip worsen system reliability. In this thesis, the developed methods based on an analytical method will be test with the Reliability Test System (RBTS). Satisfactory results are obtained.
DOI: 10.14457/cu.the.2009.1933
title: Respiratory symptoms in relation to air conditioning and dampness in homes and workplaces among the office workers in Male, Maldives

description: Respiratory symptoms in relation to air conditioning (AC) and dampness in homes and workplaces have been reported in various studies from different locations. Although the etiology remains unknown, the aging of ventilation systems, improper maintenance of the air conditioners, water leaks or water damage and mold growth in the buildings are some of the factors possibly related to respiratory symptoms and illnesses. This was a cross-sectional study aimed to find out the associations of home and workplace air conditioning and dampness with respiratory symptom and illness prevalence among adults residing in Malé, the capital of the Maldives. Participants were workers at government and private-sector offices. Data were collected during March 2010 using a self administered questionnaire at the participants‟ offices. A total of 353 questionnaires were returned. Symptom and illness prevalences were the dependent (outcome) variables in this study (total 11 outcomes, including cough, phlegm from the chest, wheezing and shortness of breath). The 25 independent variables were grouped into socio-demographic characteristics, home environmental characteristics and workplace characteristics. Each independent variable was analyzed against each dependent variable in a bivariate analysis. Multiple logistic models were then constructed for all outcomes for which p≤0.15 for home AC and/or home dampness in bivariate analysis. These models also included other independent variables for which p≤0.15. In these models, prevalences of cough, phlegm, and doctor-diagnosed sinus trouble were positively associated with presence of home AC. Respectively, these associations were statistically significant (p=0.030), marginally significant (p=0.054), and non-significant (p=0.292). Other types of prevalence were not appreciably associated with presence of home AC. In these models, prevalences of cough, phlegm, wheeze, shortness of breath, rhinitis and eye irritation at home were also positively associated with home dampness. Except for shortness of breath, which was non-significant (p=0.352), all the other 5 symptoms showed statistically significant associations with home dampness (p&lt;0.05). In this study home AC and home dampness were both shown to be respiratory risk factors. Home dampness was a stronger risk factor than home AC. Further research is needed to determine the generalizability of these findings and to identify specific ways by which to reduce indoor environmental exposures that are harmful to respiratory health.
DOI: 10.14457/cu.the.2009.1934
title: Impacts of voltage sags and protection coordination on sensitive equipment in distribution systems

description: Nowadays, a lot of sensitive electronic equipment is widely used in modern power systems such as power converters and adjustable speed drivers. Voltage sag has gained more interest due to their impacts on the performance of sensitive equipment (SE). Malfunction or failure of the equipment that leads to work or production losses can be caused by voltage sags. As a result, it is essential to have information on equipment sensitivity. If the magnitude and duration of voltage sag exceed the equipment sensitivity threshold, the equipment can malfunction, and such a consequence can affect an entire automatic process, resulting in high economical losses. Reclosers and fuses are the main overcurrent protection devices in distribution systems. Poor coordination could adversely impact on the sensitive equipment. This dissertation presents a method to analyze the impacts of voltage sags and protection coordination on sensitive equipment in distribution systems. A fault position method and mathematical equations for protective devices are used to set up the protection setting and to calculate voltage sags. Voltage tolerance thresholds and protective device characteristics are used to analyze protection and sensitive equipment coordination. Based on the results, new settings for protective devices can be adjusted to consider sensitive equipment in distribution systems. The Roy Billinton Test System (RBTS) bus 2 is used to analyze the impacts of voltage sags and protection coordination system on the sensitive equipment in distribution systems.
DOI: 10.14457/cu.the.2009.1935
title: A coupling of FEM and weakly singular SGBEM for analysis of a three-dimensional infinite medium

description: To offer an efficient numerical technique for analysis of a three-dimensional infinite medium that contain both a line of singularity introduced by cracks and a localized nonlinear region introduced by high intensity loads. It is well-known that nonlinearities present within the domain render the modeling by methods of boundary integral equations computationally inefficient while treatment of a medium that is unbounded and/or contains the discontinuity surface requires special numerical treatments and can lead to a substantial computational cost. In this investigation, we establish a coupling procedure by exploiting advantageous features of both a standard finite element method (FEM) and a symmetric Galerkin boundary element method (SGBEM). The infinite medium is first decomposed into two subdomains; the first one that is finite, localized, and may contain a nonlinear region is modeled by the FEM while the other that is unbounded and may contain the discontinuity surface is treated by the SGBEM. Use of boundary integral equations to treat an infinite region instead of the FEM offers two advantages; one corresponding to the mathematical ease of the governing equations and the numerical discretization effort (i.e. a set of governing equations involving only integrals over the boundary of the domain). Another key feature of the current technique is the use of a pair of weak-form integral equations for the displacement and for the traction to establish the formulation for the SGBEM. Such a pair of integral equations are weakly singular in the sense that they contain only kernels of order O(1/r) and, as a consequence, they only require continuous interpolations in the approximation procedure. To demonstrate accuracy and versatility of the current technique, numerous numerical experiments are performed and numerical solutions for selected cases are reported and discussed.
DOI: 10.5281/zenodo.3416403
title: Supplementary material for the publication "Copper mining: 100% solar electricity by 2030?"

description: This is a supplementary material to the publication "Copper mining: 100% solar electricity by 2030?" by Jannik Haas, Simón Moreno-Leiva, Tobias Junne, Po-Jung Chen, Giovanni Pamparana, Wolfgang Nowak, Willy Kracht, and Julián Ortiz. This file contains the main inputs used and outputs generated. For the reasoning and assumptions behind these numbers, as well as the origin of these datasets, please consult the main article.
DOI: 10.14457/cu.the.2009.1936
title: Bayesian alphas predictability and short-run persistence of the UK market

description: To examine the ability of the Bayesian alpha, as an alternative of the frequentist alpha, to predict the UK unit trust short-run future performance. By incorporating the returns on passive non-benchmark assets that correlate with the unit trust holding and an additional information -- the fund expense given to the prior distribution, the Bayesian alpha is expected to improve the predictability from the frequentist one. However, the results show that the difference in predictabilities of the Bayesian and frequentist measures is small. An additional test also shows that portfolios formed using either the Bayesian or the frequentist alpha as the selection criteria tend to similarly have abnormal losses in the subsequent years. While earlier studies suggest that using the Bayesian alpha can significantly improve the performance predictability in the US market, this study finds that, when applied to the UK market, the improvement is poor. The difference in the improvement between the US and the UK market might be due to the different environments of the two markets. A possible evidence that demonstrates the difference between the market environments is the fund expense that can provide a moderate short-run performance predictability in the US market but not in the UK market. The results from this study suggest that the Bayesian alpha is not suitable to be used to measure the unit trust performance in the UK.
DOI: 10.14457/cu.the.2009.1937
title: Fixed point theorem of half-continuous multivalued mappings

description: Let E be a topological vector space over R and let C be a nonempty subset of E. A mapping F from C into the set of nonempty subsets of E, is said to be half-continuous if for each x ∈ C with x ∉ F(x) there exists a (nonzero) continuous linear functional p ∈ E[superscript *] and a neighborhood W of x in C such that if y ∈ W, such that y ∉ F(y), then for every z ∈ F(y), p(z-y) &gt; 0. In this work, we prove that if E is locally convex Hausdorff and C is a nonempty compact convex subset of E, then every half-continuous mapping F on C into the set of nonempty subsets of C there exists a point x[subscript 0] in C such that x[subscript 0] ∈ F(x[subscript 0], that is x[subscript 0] is a fixed point of F.
DOI: 10.14457/cu.the.2009.1938
title: Synthsis of carbon nanohorns hybridized with palladium nanoparticles by gas-injected arc discharge technique

description: The objective of this research to develop a method for synthesizing single-walled carbon nanohorns (SWCNHs) hybridized with palladium nanoparticles (Pd) in a single step by using gas-injected arc-in-water method (GI-AIW). A deep insight into GI-AIW reaction system has been examined. An influence of water temperature on synthesis of SWCNHs has been experimentally studied. It is revealed that the yield of SWCNHs significantly decreases with the increase in water temperature although the purity of SWCNHs is independent on the temperature change. A mathematical model of relevant reactions in GI-AIW system was proposed by accounting the emission of carbon vapor, formation of SWCNHs and diffusion of water vapor in three zones inside cathode hole, which are arc plasma zone, quenching zone and downstream zone. A side reaction between H[subscript 2]O and C produces H[subscript 2] gas and consumes a certain amount of carbon vapor, resulting in the hindered SWCNH formation. Moreover the observation of the optical spectra emitted from the arc plasma zone strongly supports an expected mechanism that the H[subscript 2] generating reaction does not occur in the arc plasma zone since N[2] flow can purge H[subscript 2]O out. The model proposed in this study can precisely explain the correlation between H[subscript 2] gas production and water temperature. By using the GI-AIW method, SWCNHs/Pd nanocomposite can be synthesized by using Pd wire inserted inside anode hole as a precursor. Pd nanoparticles with spherical shape are embedded inside SWCNHs aggregates. The diameter of Pd nanoparticles is in the range of 3-6 nm when Pd wire diameters of 0.1 and 0.3 mm are employed. Meanwhile, the mean diameter and the size distribution of Pd nanoparticles tend to increase when Pd wire diameters of 0.5 and 0.8 mm are used. Additionally Pd nanoparticles tend to expose outside SWCNHs aggregates when larger diameter of Pd wire is employed. The total surface area of the composite dominantly depended on the surface area of SWCNHs. Based on thermogravimetric analysis, the amount of Pd nanoparticles in the composite increases with the increase in Pd wire diameter.
DOI: 10.14457/cu.the.2009.1939
title: Sexually Transmitted Infections (STIs) among urban men attending The Out Patient Department (OPD) of Federal Government Services Hospital (FGSH) Islamabad, Pakistan

description: This cross sectional study was conducted among urban men attending the STI OPD of FGSH in OPD of STI patients. Hospital record were reviewed for two types of diagnosis made by doctor one was syndromic diagnosis based on history and clinical examination and other was Laboratory diagnosis based on STI OPD record of FGSH 2009. The sample size 493 was used .The result showed the proportion of STI compared to all diagnosis in men from urban area was 12.2%. most of participants mean age was 27 years .More than half of patients were between 25-34 years age groups, 57% were married ,59.4% had government job more than 40% were educated up to primary level , near two third 73% was in low income, 64.7% had religion Islam and more than half 52% were belong from urban slum area. The overall percentage of STI by syndromic diagnosis 60.2% is more than diagnosed by laboratory 39.7% .The frequencies of follow up of patients of STI 29 (5.9%). The proportion of men in urban area with STI who come back with persistent signs and symptoms of STI after completion of first line treatment is (1.2%), and frequencies of incidence of new STI 19 (3.8%). There was significant association (p&lt;0.05) between young age and married with Gonorrhea, , young age with hepatitis B and Chancroids with married by laboratory diagnosis, in syndromic diagnosis only scrotal swelling with address maintain statistically significant.
DOI: 10.14457/cu.the.2009.1940
title: Carbon dioxide hydrogenation over titania-silica composites supported cobalt and nickel catalysts

description: This research focused on in vestigation of characteristics and properties of two types of silica i) spherical silica ii) MCM41 with and without impregnation of titania by hydrolysis of titanium isopropoxide. It was found that The TiO[subscript 2]-MCM microparticle composites (TiMCM) had better thermal stability than The TiO[subscript 2]- spherical silica microparticle composites (TiSSP). Moreover, the titania distribution on the silica surface was good. Furthermore, the investigation in the characteristics of cobalt and nickel supported on the both of silica and TiO[subscript 2]-SiO[subscript 2] microparticle composites. It was found that the reducibilities of cobalt and nickel supported on TiO[subscript 2]-SiO[subscript 2] microparticle composites catalysts were increasing. In addition, the catalystic activity and selectivities of cobalt for CO[subscript 2] hydrogenation showed that the catalystic activity and selectivities to methane of cobalt supported MCM41 are 82.77 and 92.74% in reaction temperature at 270[subscript 2]. Furthermore, selectivities to methane of nickel supported on TiO[subscript 2]-SiO[subscript 2] microparticle composites are 100% in the CO[subscript 2] hydrogenation at 270℃. It has been found that nickel supported on TiSSP650 has the highest conversion about 82.77% in reaction temperature at 270℃.
DOI: 10.14457/cu.the.2009.1941
title: Determinants of physician services utilization among public insured elderly in Chile

description: Recent estimations have established that elderly population in Chile account for 26% of the population. Elderly are main consumers of health services and are considered as a vulnerable sector of the society. For that reason, since the year 2004, Chilean government has provided health services free of charge to the elderly beneficiaries of the public insurance when they use public sector services. Despite this policy, in the year 2006 only 44% of the elderly have used physician services from the public sector when they needed physician services. The objective of the study was to identify the determinants of physician services utilization by elderly beneficiaries of the public insurance system in Chile and to analyze the determinants of private versus public physicians’ utilization among this same group. For the previous purpose, a sample of 2,281 elderly beneficiaries of the public insurance was taken from the Social Protection Survey 2006. The factors that determine health services utilization where selected from Andersen’s Model of Individual Determinants of Health Services utilization and were modified accordingly to the Chilean reality. Two logistic models where estimated. One used as dependent variable the use or non-use of physician services. The second used as dependent variable the use of private versus public physicians. As significant variables of physician services utilization were found sex (being female), high educational level, residing in the 7th, 9th and 10th region of the country, own perception of health status, diagnoses of chronic conditions and dependency in daily life activities. As significant variables in the use of private versus public physicians were found being female, having a high educational level, the amount of pension, living in the 5th Region, bad perception of health status and diagnoses of chronic conditions. The results indicate that there is a relation between socioeconomic factors and the use of health services. Because of this, policy makers and health care providers should consider individual characteristics when planning services for the elderly.
DOI: 10.21227/vp2n-h079
title: Dataset for "Review of MEMS for photonic integrated circuits": table for reported key figures

description: The following dataset summarizes key figures in reported photonic MEMS devices. The data was used to categorize devices, define and plot key figures of merit relevant to the field of photonic MEMS for scalable integrated circuits, as discussed in the invited review article "MEMS for Photonic Integrated Circuits".
DOI: 10.5281/zenodo.3416413
title: Dataset - Hydrolisis and codigestion data from lab and demo scale in INCOVER project at Chiclana de la Frontera (SP).

description: This dataset contains data obtained from pilot at lab and demo scales, for control and optimization of the hydrolysis and codigestion processes of algae, with sewage sludge and molasses. The dataset can help future projects to increase TRL of the pilot plants from TRL 5-6 to closest market applications (TRL 7-8).
DOI: 10.5281/zenodo.3416414
title: Dataset - Hydrolisis and codigestion data from lab and demo scale in INCOVER project at Chiclana de la Frontera (SP).

description: This dataset contains data obtained from pilot at lab and demo scales, for control and optimization of the hydrolysis and codigestion processes of algae, with sewage sludge and molasses. The dataset can help future projects to increase TRL of the pilot plants from TRL 5-6 to closest market applications (TRL 7-8).