bluuebunny/crossref_metadata_2025 huggingface dataset:
Enhanced electrocatalysis for alkaline hydrogen evolution by Mn doping in a Ni3S2 nanosheet array
Authors: Du Huitong , Kong Rongmei , Qu Fengli , Lu Limin
Published: August 2018

Mn-Ni3S2/NF exhibits enhanced catalytic HER performance and demands an overpotential of 152 mV to afford 10 mA cm−2 in 1.0 M KOH.
The effect of topology in Lewis pair functionalized metal organic frameworks on CO2 adsorption and hydrogenation
Authors: Ye Jingyun , Li Lin , Johnson J. Karl
Published: August 2018

We have used density functional theory and classical grand canonical Monte Carlo simulations to identify two functionalized metal organic frameworks (MOFs) that have the potential to be used for both CO2 capture from flue gas and catalytic conversion of CO2 to valuable chemicals.
Soft phonon modes from off-center Ge atoms lead to ultralow thermal conductivity and superior thermoelectric performance in n-type PbSe–GeSe
Authors: Luo Zhong-Zhen , Hao Shiqiang , Zhang Xiaomi , Hua Xia , Cai Songting , Tan Gangjian , Bailey Trevor P. , Ma Runchu , Uher Ctirad , Wolverton Chris , Dravid Vinayak P. , Yan Qingyu , Kanatzidis Mercouri G.
Published: August 2018

The off-centered Ge leads to the ultralow lattice thermal conductivity and record high average ZT for n-type PbSe.
Anti-wetting behaviour of a superhydrophobic octadecyltrimethoxysilane blended PVDF/recycled carbon black composite membrane for enhanced desalination
Authors: Ray Saikat Sinha , Gandhi Mansi , Chen Shiao-Shing , Chang Hau-Ming , Dan Cao Thanh Ngoc , Le Huy Quang
Published: August 2018

A novel superhydrophobic octadecyltrimethoxysilane (OTMS)-modified composite membrane was fabricated by incorporating recycled carbon black (CB).
Effects of a low and a high dietary LA/ALA ratio on long-chain PUFA concentrations in red blood cells
Authors: Greupner Theresa , Kutzner Laura , Pagenkopf Svenja , Kohrs Heike , Hahn Andreas , Schebb Nils Helge , Schuchardt Jan Philipp
Published: August 2018

There is a debate about the optimal dietary ratio of LA and ALA to promote an efficient conversion of ALA to EPA and DHA, which have implications for human health.
TsOH·H2O-mediated N-amidation of quinoline N-oxides: facile and regioselective synthesis of N-(quinolin-2-yl)amides
Authors: Chen Xinghua , Peng Mei , Huang Hao , Zheng Yangfan , Tao Xiaojun , He Chunlian , Xiao Yi
Published: August 2018

An operationally simple method with 100% atom economy was developed for the synthesis of various N-(quinolin-2-yl)amides via the TsOH·H2O-mediated N-amidation of quinoline N-oxides using inexpensive and commercially available nitriles as the amidation reagents.
Truxene-based porous polymers: from synthesis to catalytic activity
Authors: Guadalupe Jordy , Ray Ana M. , Maya Eva M. , Gómez-Lor Berta , Iglesias Marta
Published: August 2018

New, robust, insoluble porous organic polymers based on the semiconducting platform of hexamethyltruxene with high Brunauer–Emmett–Teller specific surface areas and interesting catalytic activity are presented.
RAFT-mediated Pickering emulsion polymerization with cellulose nanocrystals grafted with random copolymer as stabilizer
Authors: Bai Liangjiu , Jiang Xinyan , Liu Beifang , Wang Wenxiang , Chen Hou , Xue Zhongxin , Niu Yuzhong , Yang Huawei , Wei Donglei
Published: August 2018

A RAFT-mediated Pickering emulsion with cellulose nanocrystals grafted with a random copolymer was used for the preparation of poly(methyl methacrylate) particles..
Layer charge robust delamination of organo-clays
Authors: Daab Matthias , Eichstaedt Natalie J. , Edenharter Andreas , Rosenfeldt Sabine , Breu Josef
Published: August 2018

Bulky but hydrophilic organo-cations as interlayer ions of clay minerals allow repulsive osmotic swelling irrespective of the layer charge density.
Correction: A vertical WSe2–MoSe2 p–n heterostructure with tunable gate rectification
Authors: Liu Hailiang , Hussain Sajjad , Ali Asif , Naqvi Bilal Abbas , Vikraman Dhanasekaran , Jeong Woonyoung , Song Wooseok , An Ki-Seok , Jung Jongwan
Published: August 2018

Correction for ‘A vertical WSe2–MoSe2 p–n heterostructure with tunable gate rectification’ by Hailing Liu et al., RSC Adv., 2018, 8, 25514–25518.
Ionic liquid functionalized electrospun gel polymer electrolyte for use in a high-performance lithium metal battery
Authors: Cheng Yuanyuan , Zhang Lan , Xu Song , Zhang Haitao , Ren Baozeng , Li Tao , Zhang Suojiang
Published: August 2018

The reported novel gel polymer electrolyte can stabilize lithium deposition, thus enhancing the safety and rate capability by reducing the anion mobility in Li/LiNi0.5Mn1.5O4 cells.
Characterizing the interaction between insulin-like growth factor 2 mRNA-binding protein 1 (IMP1) and KRAS expression
Authors: Mackedenski Sebastian , Wang Chuyi , Li Wai-Ming , Lee Chow H.
Published: August 2018

Insulin-like growth factor 2 mRNA-binding protein-1 (IMP1) has high affinity for KRAS mRNA, and it can regulate KRAS expression in cells. We first characterized the molecular interaction between IMP1 and KRAS mRNA. Using IMP1 variants with a point mutation in the GXXG motif at each KH domain, we showed that all KH domains play a critical role in the binding of KRAS RNA. We mapped the IMP1-binding sites on KRAS mRNA and show that IMP1 has the highest affinity for nts 1–185. Although it has lower affinity, IMP1 does bind to other coding regions and the 3′-UTR of KRAS mRNA. Eight antisense oligonucleotides (AONs) were designed against KRAS RNA in the nts 1–185 region, but only two, SM6 and SM7, show potent inhibition of the IMP1–KRAS RNA interaction in vitro. To test the activity of these two AONs in SW480 human colon cancer cells, we used 2′-O-methyl-modified versions of SM6 and SM7 in an attempt to down-regulate KRAS expression. To our surprise, both SM6 and SM7 had no effect on KRAS mRNA and protein expression, but significantly inhibited IMP1 protein expression without altering IMP1 mRNA level. On the other hand, knockdown of IMP1 using siRNA lowered the expression of KRAS. Using Renilla luciferase as a reporter, we found that IMP1 translation is significantly reduced in SM7-treated cells with no change in let-7a levels. The present study shows that the regulation of KRAS expression by IMP1 is complex and may involve both the IMP1 protein and its mRNA transcript.
The N-terminal polypeptide derived from vMIP-II exerts its anti-tumor activity in human breast cancer by regulating lncRNA SPRY4-IT1
Authors: Wu Haihua , Wang Yueyue , Chen Tiantian , Li Yu , Wang Haifeng , Zhang Lingyu , Chen Sulian , Wang Wenrui , Yang Qingling , Chen Changjie
Published: August 2018

Accumulating evidence demonstrates that long non-coding RNA (lncRNA) sprouty4-intron transcript 1 (lncRNA SPRY4-IT1) plays a vital role in the development of breast cancer. However, the underlying mechanism has not been eventually illuminated. We aimed to explore the biological activity of lncRNA SPRY4-IT1 in breast cancer cells and whether N-terminal polypeptide derived from viral macrophage inflammatory protein II (NT21MP) could exert its anti-tumor effect by regulating lncRNA SPRY4-IT1 and its target gene SKA2. Real-time RT-PCR, Western blotting, wound healing, and invasion assays were used to achieve this goal. We found that lncRNA SPRY4-IT1 was highly expressed in breast cancer cells. Moreover, NT21MP markedly inhibited biological effects of breast cancer cells by regulating lncRNA SPRY4-IT1, which was partially achieved through SKA2. Our findings suggested that lncRNA SPRY4-IT1 could serve as a novel biomarker by NT21MP for breast cancer.
Altered brain metabolites in patients with diabetes mellitus and related complications – evidence from 1H MRS study
Authors: Zhao Xue , Han Qing , Gang Xiaokun , Wang Guixia
Published: August 2018

In recent years, diabetes mellitus (DM) has been acknowledged as an important factor for brain disorders. Significant alterations in brain metabolism have been demonstrated during the development of DM and its complications. Magnetic resonance spectroscopy (MRS), a cutting-edge technique used in biochemical analyses, non-invasively provides insights into altered brain metabolite levels in vivo. This review aims to discuss current MRS data describing brain metabolite levels in DM patients with or without complications. Cerebral metabolites including N-acetylaspartate (NAA), creatine (Cr), choline (Cho), myo-inositol (mI), glutamate, and glutamine were significantly altered in DM patients, suggesting that energy metabolism, neurotransmission, and lipid membrane metabolism might be disturbed during the progression of DM. Changes in brain metabolites may be non-invasive biomarkers for DM and DM-related complications. Different brain regions presented distinct metabolic signatures, indicating region-specific diabetic brain damages. In addition to serving as biomarkers, MRS data on brain metabolites can also shed light on diabetic treatment monitoring. For example, exercise may restore altered brain metabolite levels and has beneficial effects on cognition in DM patients. Future studies should validate the above findings in larger populations and uncover the mechanisms of DM-induced brain damages.
Precise radial velocities of giant stars
Authors: Stock Stephan , Reffert Sabine , Quirrenbach Andreas
Published: August 2018

Context. The determination of accurate stellar parameters of giant stars is essential for our understanding of such stars in general and as exoplanet host stars in particular. Precise stellar masses are vital for determining the lower mass limit of potential substellar companions with the radial velocity method, but also for dynamical modeling of multiplanetary systems and the analysis of planetary evolution.

Aims. Our goal is to determine stellar parameters, including mass, radius, age, surface gravity, effective temperature and luminosity, for the sample of giants observed by the Lick planet search. Furthermore, we want to derive the probability of these stars being on the horizontal branch (HB) or red giant branch (RGB), respectively.

Methods. We compare spectroscopic, photometric and astrometric observables to grids of stellar evolutionary models using Bayesian inference.

Results. We provide tables of stellar parameters, probabilities for the current post-main sequence evolutionary stage, and probability density functions for 372 giants from the Lick planet search. We find that 81% of the stars in our sample are more probably on the HB. In particular, this is the case for 15 of the 16 planet host stars in the sample. We tested the reliability of our methodology by comparing our stellar parameters to literature values and find very good agreement. Furthermore, we created a small test sample of 26 giants with available asteroseismic masses and evolutionary stages and compared these to our estimates. The mean difference of the stellar masses for the 24 stars with the same evolutionary stages by both methods is only ΔM = 〈Mtrk. − MAst.〉 = 0.01 ± 0.20 M⊙.

Conclusions. We do not find any evidence for large systematic differences between our results and estimates of stellar parameters based on other methods. In particular we find no significant systematic offset between stellar masses provided by asteroseismology to our Bayesian estimates based on evolutionary models.
Formation of a planetary Laplace resonance through migration in an eccentric disk
Authors: Cimerman Nicolas P. , Kley Wilhelm , Kuiper Rolf
Published: August 2018

Context. Orbital mean motion resonances in planetary systems originate from dissipative processes in disk-planet interactions that lead to orbital migration. In multi-planet systems that host giant planets, the perturbation of the protoplanetary disk strongly affects the migration of companion planets.

Aims. By studying the well-characterized resonant planetary system around GJ 876 we aim to explore which effects shape disk-driven migration in such a multi-planet system to form resonant chains.

Methods. We modelled the orbital migration of three planets embedded in a protoplanetary disk using two-dimensional locally isothermal hydrodynamical simulations. In order to explore the effect of several disk characteristics, we performed a parameter study by varying the disk thickness, α viscosity, mass as well as the initial position of the planets. Moreover, we have carefully analysed and compared simulations with various boundary conditions at the disk’s inner rim.

Results. We find that due to the high masses of the giant planets in this system, substantial eccentricity can be excited in the disk. This results in large variations of the torque acting on the outer lower mass planet, which we attribute to a shift of Lindblad and corotation resonances as it approaches the eccentric gap that the giants create. Depending on disk parameters, the migration of the outer planet can be stopped at the gap edge in a non-resonant state. In other models, the outer planet is able to open a partial gap and to circularize the disk again, later entering a 2:1 resonance with the most massive planet in the system to complete the observed 4:2:1 Laplace resonance.

Conclusions. Disk-mediated interactions between planets due to spiral waves and excitation of disk eccentricity by massive planets cause deviations from smooth inward migration of exterior lower mass planets. Self-consistent modelling of the disk-driven migration of multi-planet systems is thus mandatory. Constraints can be placed on the properties of the disk during the migration phase, based on the observed resonant state of the system. Our results are compatible with a late migration of the outermost planet into the resonant chain, when the giant planet pair already is in resonance.
The effect of pozzolan addition on the physical and mechanical properties of lime mortar
Authors: Brzyski Przemysław
Published: August 2018

Hydrated lime, due to its life cycle (return to the natural form as a result of binding and hardening) shows a positive ecological aspect. The binder is often used in building materials based on plant components due to the high alkaline reaction and low diffusion resistance, as well as in mortars and plasters. However, it is an air binder with low strength parameters and the process of its binding and hardening is long-lasting. One of the ways to accelerate the binding processes and also to increase the strength of the binder is the use of additives in the form of pozzolanic materials which react with calcium hydroxide and form compounds with hydraulic properties. These are natural materials or industrial waste, so they do not affect the environmental impact of lime binder. The article presents the influence of the addition of pozzolan (three types) in various weight amounts, on the strength properties of mortars, their absorbability and capillary rise (presented as water absorption coefficient). The influence of pozzolan presence on workability of fresh mortars - their consistency was also checked.
A tool to estimate indoor temperature in buildings with a risk of overheating in the temperate European climate zone
Authors: Bzowska Dorota
Published: August 2018

A regression model is proposed, as a simple tool, for estimating indoor temperature in thermally insulated buildings, applicable to situations when only natural ventilation in midsummer is concerned. Knowledge of this temperature, at a primary stage of a design process, might help avoiding the risk of overheating during summertime. The proposed regression model is applicable for buildings located in the temperate European climate zone. To create the regression model, the values of indoor temperature are calculated for incrementally increasing thermal resistance of outside walls, and gradual enlargement of windows. The outside partitions were covered with an insulating material with a thickness of 3 to 30 cm. For every insulation layer the window surface to wall surface ratio (wwr) was changing from 5% to 50%. The wwr changes were applied to a selected window, facing east, south and west in turn while wwr for the remaining orientations was kept at a constant value 1/10 of the wall. The considered building is representative for a single family house located at an open space. The algorithm of computations was based on the finite differences method, where feedback between the thermal model and the airflow model was applied.
Technological solutions applied in biogas plants - a case study
Authors: Chludziński Daniel , Duda Michał
Published: August 2018

This paper describes three operating biogas plants with a comparable electrical power of 600 kW. The plants are situated in Germany and were constructed between 2007 and 2013. They belong to one owner who has a farm with an area of ca. 1,200 ha, oriented towards plant production. The article presents technological solutions applied in biogas plants; an attempt was also made to determine their effect on the amount of electricity consumed in the process (operation of stirrers, substrate feeders, pumps, control systems, lighting, etc.). Despite similar electrical power, the biogas plants differ in terms of construction and technological solutions. The differences stem mainly from the number and capacity of digestion chambers, the method of biomass stirring and the method of substrate supply. The preliminary conclusions from observations of these facilities confirm the literature data concerning the consumption of electricity in the process compared to total electricity production. The paper also presents the capacity factor for each facility and the level of heat use from cogeneration.
The impact of using batteries in micro PV system on profitability of the investment
Authors: Chwieduk Bartosz , Chwieduk Michał
Published: August 2018

The paper presents the results of calculations of energy consumption and economic analysis of the operation of micro photovoltaic installations. Calculations have been made for a single-family house with an energy demand based on real electricity consumption. Two cases have been considered. In the first one, the photovoltaic system contains only PV modules and an inverter. Energy produced is sent to the power grid. In the second case, the PV system also contains batteries. Because of existing regulation conditions, it is better to accumulate produced energy than to sell it to the grid. Costs of construction of the PV systems and money savings during operation of the PV systems have been compared. Conclusions of profitability of analyzed systems have been presented.
Evaluation of the influence of aggregate type on selected properties of epoxy mortars
Authors: Dębska Bernardeta , Wójcik Katarzyna
Published: August 2018

Aggregates, or granular materials, are currently one of the most sought-after construction materials. Natural aggregate deposits are quite common in the world, but their widespread consumption and progressive environmental degradation forces many countries to take measures to reduce the depletion of natural resources. One of the solutions is the use of alternative aggregates. The use of this type of aggregates enables further minimization of the volume of wastes and their adverse impact on the environment and the neutralisation of the remaining waste by, among others, production of artificial aggregates. Forecasts for the future assume a reduction in the production of artificial aggregates, brought about by the production of alternative aggregates from recycling. Many research centres around the world conduct research on the assessment of the effect of various aggregates on the properties of concrete and mortar. This article compares selected properties, i.e. the flexural and compressive strength and bulk density of epoxy mortars, in which the natural aggregate has been partially replaced by perlite, expanded clay and rubber waste pellets. The type of filler used differentiates the mortar characteristics recorded. The tested properties of composites indicate the possibility of their use in construction industry.
Sorption measurements of autoclaved aerated concretes diffusion coefficient
Authors: Garbalińska Halina , Bochenek Magdalena
Published: August 2018

This study presents the results of sorption measurements and analyzes their applicability in the determination of the moisture diffusion coefficient in the porous media in which these processes occur. The test involved three classes of autoclaved aerated concrete density: 500, 600 and 700. The sorption processes under examination covered practically the whole range of hygroscopic humidity from RH = 0% up to RH = 98%. The idea of the experiment was to place dry samples of the tested concretes to 98% relative humidity stimulated by the saturated water solution of K2SO4. The tests were performed until weight stabilization of all samples, which took about 10 months. On the basis of the results obtained, individual diffusion coefficients were determined using two different calculation procedures: the square root of time method and the logarithmic method. The first method applies to the initial stage of the process, while the other is used at its advanced stage. Both measurement methods were assessed in terms of their applicability and compatibility.
Selected methods of converting solar energy into electricity - comparative analysis
Authors: Gawkowski Kamil , Sikora Jarosław
Published: August 2018

This article presents selected methods of converting solar energy into electricity: photovoltaic cells (PV), converters which use photon-enhanced thermionic emission (PETE), and near-field enhanced thermionic energy conversion systems (NETEC). PETE and NETEC systems are innovative solutions that use the thermionic emission phenomenon and can replace photovoltaic generation of electricity. We did a comparative analysis of such issues as: structure, principle of operation, working temperature and with particular emphasis - efficiency. A comparison of these parameters is shown in the graphs and summarized in the table. Based on the analysis, we have drawn conclusions about previous achievements and development perspectives in the field of converting methods.
Mobile structures in terrestrial and aquatic environments and the use of alternative energy sources
Authors: Gronostajska Barbara Ewa , Berbesz Anna Maria
Published: August 2018

The dynamic changes in modern civilization transforming into new socio-economic-technological phenomena discusses the meaning of traditional thinking about the durability of a building. At the turn of the 20th and 21st centuries, a considerable number of small cubature objects have been created. These types of structures can be transferred into various urbanized and non-urbanized spaces by means of the external or internal drive. Stationing temporarily mobile structures in terrestrial and aquatic environments may be a unique material of urban space. This article focuses on the complexity of the phenomenon of the movement in architecture with particular emphasis on the aspect of innovative energy sources enabling autonomous functioning. The technological process of shaping mobile structures is often based on prefabricated modular solutions, which production cost and time of completion are maximally optimized. Due to the possibility of transfer, the best solution seems to be the use of autonomous installations, which creates spaces for innovative technological exploration. Nowadays, attempts to shape completely autonomous and off-grid facilities are the part of the area of prototype research.
Responsive solutions in shaping innovative architectural structures
Authors: Gronostajska Barbara Ewa , Berbesz Anna Maria
Published: August 2018

Permanent technological development leads to the search for the most utilitarian material and structural solutions in architecture. During recent decades, a large number of bioinspired materials applicable in engineering and medicine have been invented. However, nature remains the perfect creator of multifunctional structures. The main question concerns the possibility of implementing technological solutions that would enable a literal moving of the building. The assumption of responsive architecture is the ability to react to the user’s actions and external environmental stimulation. Nowadays, electronic systems that enable integral control of individual building installations in order to minimize energy losses (e.g. BMS) are commonly available. In kinetic and responsive architecture the CABS system is often used to control the façade. This paper focuses on the etymology of responsive architecture and outlines the directions of its application in the innovative technological solutions in architecture.
Autonomous photovoltaic observatory station integrated with UAV - a case study
Authors: Gulkowski Slawomir , Skomorowska Agnieszka
Published: August 2018

Over the past few decades the World has experienced a revolution in Energy production from solar technology, mostly from photovoltaics. On the other hand, an increasing number of unmanned aerial vehicle (UAV) applications are also noticed. Combining photovoltaics and UAVs reveals many opportunities for researchers and renewable energy industry. Responding to the challenge of large area observations at remote locations, the conception of an autonomous photovoltaic station integrated with UAV has been proposed. The essential advantage of the station is its energetic autonomy. The station is movable and can be installed in various locations all over the World. It can be implemented for a wide range of applications, i.e. examining hydroelectric, solar or wind power stations. The simulation results of energy production from PV system mounted on the station have been shown in this work. Several issues were taken into account for the calculations: tilt and azimuth of PV modules, irradiation at case study location and energy demand of the station’s equipment. The energy usage of five and eight hours daily of UAV flights was estimated. Energy balance was calculated.
Thermal functioning of a transparent barrier equipped with a system of external thermal insulation shields
Authors: Miąsik Przemysław , Krasoń Joanna
Published: August 2018

The article presents the results of tests of the thermal operation of a transparent barrier, which is equipped with an external thermal insulation roller blind. The tests were carried out under real climatic conditions. The barrier in question was mounted on the south façade in two external test chambers. The aim of the research was to determine whether and to what extent the external thermal insulation roller blind influences the flow of heat through the transparent barrier. The second goal was to propose a way of programming the position of the blind so that it would be beneficial in both limiting of overheating in the adjacent room during the high summer sunshine and minimizing the need to reheat the room in the case of high clouds and low temperatures in the outside air. During the tests, the following values were measured: the intensity of solar radiation, temperature (outside air, indoor air and the internal surface of the barrier), as well as the heat flux density on the internal surface of the barrier. The test results indicate that the use of an external thermal insulation roller blind has a significant impact on the thermal operation of the transparent barrier and thermal comfort in the room adjacent to the barrier. The method of programming of the position of the blind should take into account both the temperature of the outside air and the value of the intensity of solar radiation, as well as the temperature of the air in the room adjacent to the barrier, and the direction and values of the heat flux passing through this barrier.
Application of Poensgen apparatus for determining the thermal conductivity of reflective insulations
Authors: Radomski Bartosz , Drojetzki Lawrence
Published: August 2018

Multilayer reflective insulations are a combination of several or a dozen low emission screens compressed together, separated by layers of bubble foil or polyethylene foam. This paper presents the results of experimental investigation of thermal conductivity of multilayer reflective insulations. The measurements were made with Poensgens LaserComp FOX 314 apparatus. Five samples of reflective insulation and one sample of foamed polystyrene have been tested. The difficulties of determining the replacement thermal resistance for the discussed materials have been presented. Information about the apparatus used, theory of the measurement method, procedure of the experiment and method of sample preparation were presented. The study was performed for four different temperature pairs representing the real thermal conditions in Poland throughout the year. On the basis of the obtained measurement results the average thermal conductivity and average thermal resistance of the tested materials were determined. The relation between the obtained thermal conductivity and thermal resistance depending on the temperature was discussed.
Deep thermomodernization of three residential buildings in Kryvyi Rih, Ukraine
Authors: Różycki Kamil
Published: August 2018

This article presents the energy balance conditions of three multi-family residential buildings located in Kryvyi Rih, Ukraine. These buildings were built more than 40 years ago and are not insulated. A significant amount of energy is lost by the external partitions. The building’s heating is powered by municipal natural gas. A proposal for several thermomodernization variants for selected facilities are presented in the article. These variants of deep thermomodernization include an upgrade of the heating installation, insulation of external walls and roof, and the replacement of windows and doors in common areas. In view of the recent increases in the gas prices, the internal building's temperature is maintained below the thermal comfort. The presented variants include the proposal to leave the internal temperature at the present level, as well as to increase it to 20 °C. Heat transfer coefficients were calculated based on of the PN-EN 6946 standard and the heat demand for the buildings was estimated in the standard reference year in accordance with the PN-EN ISO 13790 standard. Results are compared with real values. The buildings’ models were prepared in the Audytor OZC 6.7. Pro software. The impact of appropriately sized photovoltaic system for each of the objects was also analyzed and the solar irradiation data has been taken from the RETScreen 4 software.
Mechanical multi-function buttons in intelligent building installations as a way to reduce electricity consumption
Authors: Sałuch Mateusz , Tomaszewski Robert , Zegardło Bartosz , Andrzejuk Wojciech , Lubańska Zofia
Published: August 2018

This article aims to show the possible energy savings in intelligent building installations due to the use of programmable mechanical multifunctional buttons. Two monostable buttons were placed, the pressing of which triggered the entire sequence of programmed actions and procedures. The consumption of electricity from the period before and after the assembly of the buttons was compared. The measured effects of using the buttons have shown that the energy consumption has decreased by approximately 7.5 kWh per month. The low installation costs and benefits resulting from the use of such a solution make it a cost-effective and a very convenient solution.
Assessment of a steel bridge corrosion degree
Authors: Selejdak Jacek , Urbański Mariusz , Winiarski Marek
Published: August 2018

The subject of this analysis is connected with the verification of the load capacity of the span structure taking into account the degree of corrosion of the railway viaduct components located at 41.446 km, on the railway line no. 301 of "Kotlarnia" SA Sand Mine built over the national road DK88 and railway tracks PKP-PLK near T. Kościuszki street in Zabrze The general condition of the structure with regard to the corrosion assessment of structural steel is presented in the paper. Static and strength calculations were carried out to determine the load capacity class, and as a result of the analysis it was found that the technical condition of the facility steel girders is suitable for repair.
Financing sources of pro-ecological investments in the field of renewable Energy in Poland - an overview of the support mechanisms
Authors: Sękulski Łukasz , Żuchowski Stefan
Published: August 2018

In view of an increasing trend in energy consumption and EU pressure on using sources of low greenhouse gas emission, Poland is facing an unprecedented challenge following increasing dependence from energy imports and also a necessity of climate change reduction. The target of this study is the presentation of investment financing mechanisms favoring environmental protection through the introduction of systems based on energy respect and renewable sources. This study is an analysis of the material of financial law, resolutions and trends in the pro-ecological policy of the state and self-government programs for environmental protection, ecological plans and priorities.
The effects of waste glass cullets and nanosilica on the long-term properties of cement mortars
Authors: Skoczylas Katarzyna , Rucińska Teresa
Published: August 2018

This study presents experimental results on the effects of nanosilica and waste glass cullets on the long-term mechanical properties and durability of cement mortars. Three groups of cement mortars were prepared, where natural aggregate was replaced in 0% (R), 50% (RWG) and 100% (WG) with waste glass cullets by volume. Each group was modified with the nanosilica admixture by 0%, 1% and 3% by the weight of cement. Furthermore, superplasticizer was incorporated in order to improve the workability of mortars. Subsequently to the preparation and curing of specimens, mechanical properties after 7, 28 and 365 days, freeze-thaw resistance, adhesive strength, abrasion resistance, and drying shrinkage (in two types of curing conditions) were evaluated. The results confirmed the applicability of waste glass in the construction industry as well as the beneficial effect of nanosilica on the mechanical properties of mortars.
Modern measurement methods in strength tests of sigma thin-walled steel beams
Authors: Szewczak Ilona , Rzeszut Katarzyna
Published: August 2018

In the paper the modern measurement methods of structural deformation using GOM optical measuring systems based on digital image processing were presented. First part of the work demonstrates the results of measurement of initial geometrical imperfections of steel structural elements using the Tritop optical 3D coordinate measuring machine. The method of preparation of sigma type steel beams with a height of 200 mm, a flange width of 70 mm and a wall thickness of 2 mm is presented. Afterwards, the subsequent stages of measurements and the method of reading the obtained results and their interpretation are described. The next step presents a test stand designed to perform strength tests of thin-walled sigma beams in a four-point bending scheme. In addition, the method of preparation of beam’s surface to measurement of 3D using the Aramis system and electrofusion strain gauges is presented. The deformation values obtained for three sigma-type steel beams were compared with respect of two mentioned measurement methods. The final conclusions and recommendations regarding the methodology of geometry and strain measurement using optical measuring systems complete the work.
Prediction of capacity of geothermal doublet located in the vicinity of Kalisz using the numerical modeling
Authors: Wachowicz-Pyzik Anna , Sowiżdżał Anna , Pająk Leszek
Published: August 2018

Attaining the proper values of main production parameters of operating geothermal installation: outflow, temperature, water level in production well and required injection pressure in a well for reinjection may significantly reduce the costs of energy production. Lower production costs compensate high investment expenditures and reduce the energy prices down to an acceptable level, competitive in relation to conventional energy sources. In the research project, we used the TOUGH2 simulator to select configuration of geothermal doublet and to estimate the discharge of potential geothermal installation localized in the vicinity of Kalisz and based upon the existing Zakrzyn IG-1 well. Considering the measurements and other information gained during the drilling operations, the conceptual model was generated. In order to select the optimal configuration of the doublet, which would ensure the maximum yield, the analysis was carried out on the influence of production/injection wells spacing on production parameters. The optimization aimed to determine the minimum spacing which would guarantee that the injection well would not affect the temperature of fluid discharged from the production well within the presumed circulation time.
Using Artificial Intelligence in energy efficient construction
Authors: Węglarz Arkadiusz
Published: August 2018

Artificial Neural Networks (ANNs), genetic algorithms, case based reasoning (CBR), and hybrid systems are all methods of artificial intelligence. This dissertation presents a literature overview and its author’s achievements in methods of utilizing artificial intelligence methods in energy efficient buildings, which include: an expert system for supporting the financing of thermo-modernization investment, a method of optimizing thermo-modernization strategies for groups of buildings using genetic algorithms, and a case based reasoning system (CBR) intended to facilitate the design of energy efficient single family housing. Case based reasoning consists of comparing new problems with past problems and using a past solution. In the CBR system, previously developed single family housing designs will be described using linguistic variables defined as fuzzy sets. The designer, who wants to create the documentation for a new energy efficient building after talking with the investor about his or her expectations, enters a query, defined as linguistic variables, into the system. The system finds the documentation of already constructed buildings, most closely matching the investor’s requirements. The designer performs the required adjustments, and after the investor’s approval, places the new documentation into the database for further use.
Comparing construction technologies of single family housing with regard of minimizing embodied energy and embodied carbon
Authors: Węglarz Arkadiusz , Pierzchalski Michał
Published: August 2018

This article concerns the Life Cycle Assessment method of evaluation and the ways in which it can be applied as a tool facilitating the design of buildings to reduce embodied energy and embodied carbon. Three variants of a building were examined with the same functional ground plan and usable floor area of 142.6 m2. Each variant of the building was designed using different construction technologies: bricklaying technology utilizing autoclaved aerated concrete popular in Poland, wooden frame insulated with mineral wool, and the Straw-bale technology. Using digital models (Building Information Model) the building’s energy characteristics was simulated and the embodied energy and embodied carbon of the production stage (also called cradle-to-gate) were calculated. The performed calculations were used to compare the cumulative energy and embodied carbon of each variant for a 40 year long life cycle.
Historical climate of the historic church of St. George at Ostropa
Authors: Żaba Antonina , Marchacz Michał
Published: August 2018

The paper presents investigation studies on the historic climate of the interior of St. George’s Church at Ostropa. The church lies on the Wooden Architecture Trail of the Silesian Province within the Gliwice Loop. The building consists of a brick part (presbytery and sacristy) and a wooden part (nave, porch and tower). The shape and size of the church were formed at the end of the 17th century. Most of the decor and furnishings come from that period. Since 2008, the church has been subjected to a wide range of renovation and conservation works. The manager of the object and the conservation office have been entrusted to give special care to the polychromes in the wooden nave, brick presbytery and the main altar. Wooden elements belong to a group of organic hygroscopic materials. They are exposed to the risk of internal damage due to changes in temperature and humidity. The reduction of damage risk involves limiting the scope and dynamics of temperature or humidity changes as compared to the so-called historic climate. The parameters of the historical climate of the object were determined based on the measurement of temperature and humidity inside the investigated object.
Bibliography, catalogs, pixel data: Management of heterogeneous Big Data at CDS by the documentalists
Authors: Buga M. , Fernique P. , Bot C. , Allen M. G. , Bonnarel F. , Brouty M.
Published: August 2018

High speed Internet and the evolution of data storage space in terms of cost-effectiveness has changed the way data are managed today. Large amounts of heterogeneous data can now be visualized easily and rapidly using interactive applications such as “Google Maps”. In this respect, the Hierarchical Progressive Survey (HiPS) method has been developed by the Centre de Données astronomiques de Strasbourg (CDS) since 2009. HiPS uses the hierarchical sky tessellation called HEALPix to describe and organize images, data cubes or source catalogs. These HiPS can be accessed and visualized using applications such as Aladin.

We show that structuring the data using HiPS enables easy and quick access to large and complex sets of astronomical data. As with bibliographic and catalog data, full documentation and comprehensive metadata are absolutely required for pertinent usage of these data. Hence the role of documentalists in the process of producing HiPS is essential. We present the interaction between documentalists and other specialists who are all part of the CDS team and support this process. More precisely, we describe the tools used by the documentalists to generate HiPS or to update the Virtual Observatory standardized descriptive information (the “metadata”). We also present the challenges faced by the documentalists processing such heterogeneous data on the scales of megabytes up to petabytes.

On one hand, documentalists at CDS manage small size textual or numerical data for one or few astronomical objects. On the other hand, they process large data sets such as big catalogs containing heterogeneous data like spectra, images or data cubes, for millions of astronomical objects. Finally, by participating in the development of an interactive visualization of images or three-dimensional data cubes using the HiPS method, documentalists contribute to a long-term management of complex, large astronomical data.
VizieR catalogue system certified by the Data Seal of Approval
Authors: Landais Gilles , Genova Françoise , Hangouët Jean-Yves ,   Team Vizie R
Published: August 2018

Astronomy is a fertile environment with collaborations leading to the elaboration of disciplinary standards. Deploying standards in data centers can be beneficial for long term preservation and it puts the discipline in the open data era.

VizieR [1] is the CDS service dedicated to catalogues. It gathers data and tables, but also associated data like spectra or images coming from published papers or collaborations with various agencies. VizieR gives access to data through services to the astronomical community and preserves data for the long term. Several years ago, it became clear that it was worth applying for an external evaluation to certify that VizieR is a trustable data repository.

The Data Seal of Approval (DSA) [2] is granted to repositories that are committed to archiving and providing access to scholarly research in a sustainable way. CDS applied to the DSA in particular for the VizieR catalogue service. The VizieR information system is based on accurate data documentation provided by specialists. The data life cycle from ingestion to access and preservation is presented, with reference to the Open Archive Information System (OAIS [3]).
A Bibliometric Analysis of Observatory Publications 2011-2015
Authors: Crabtree Dennis
Published: August 2018

Bibliometrics are increasingly used as metrics to measure the performance of individuals, institutions and countries. Refereed publications are the primary output of modern observatories. In this paper, I use bibliometric techniques to examine the performance of astronomical observatories.
Institutional Repository Know-how of a decade in Managing Digital Assets
Authors: Meera B.M. , Krishnamurthy S , Kaddipujar Manjunath
Published: August 2018

The advent of the Internet and the mushrooming of information in various digital formats have resulted in looking at the library and its services with newer perspectives for conserving and disseminating scholarly publications. This paper discusses two mechanisms of digitization initiated at Raman Research Institute (RRI) in India, namely 1) the Digital Repository of RRI and 2) the Imprints Collection. The digital repository of RRI is the institutional repository built in 2006 to bring visibility to the scholarly publications of its founder Sir C V Raman. This paper discusses a decade long experience in building and sustaining an institutional repository. A value addition to this repository is the “Imprints Collection”- a bio-bibliographic database of retired scientists of RRI. The design and functionality of the Imprints Collection are also discussed in this paper.
Negotiating with the scientific publishers A new experience for the Italian Astronomical Libraries
Authors: Gasperini Antonella , Abrami Laura
Published: August 2018

In 2016, Italian Astronomical Libraries decided not to renew their subscriptions to electronic journals directly with the most important scientific publishers but to adhere, wherever possible, to the negotiating activities conducted by CARE, a coordinating group within the Libraries Commission, of the Conference of Italian University Rectors (CRUI), the Italian association of state and private universities. Participating in a consortium would have meant better economic conditions for INAF and more favourable contract terms for the final user. Advantages and disadvantages of direct negotiations with the publishers or of participation in a large consortium are analyzed here.
“Boletín de los Observatorios de Tonantzintla y Tacubaya”1952 to 1972: Preliminary results of a bibliometric study
Authors: Elena Jiménez-Fragozo María , Aceves Hector
Published: August 2018

We analyzed the scientific production of astronomers published in the first Mexican journal of astronomy, the Boletín de losObservatorios de Tonantzintla y Tacubaya (BOTT), from 1952 to 1972. The bibliometric behavior of the BOTT is provided, identifying the most productive authors, article usage, as well as impact and visibility
Conversions hystériques et somatoses
Authors: Vialet-Bine Geneviève
Published: August 2018

Ce texte tente quelques réflexions sur ces états du corps et les mécanismes psychiques qui en rendent compte. Si les mécanismes à l’œuvre dans les conversions font large consensus dans la communauté analytique, leur fonctionnement méritait d’être rappelé pour marquer la différence d’avec les somatoses qui sont au cœur de ce travail et de ces interrogations. Cet effort d’éclaircissement s’impose tant la confusion règne si on n’y apporte pas un peu de rigueur. Nous tentons à travers la clinique de nous frayer un chemin dans les divers courants de nature à rendre compte à partir de leurs références théoriques, de la désorganisation des fonctions somatiques. Avec comme fil rouge, cette interrogation : les somatoses, ces atteintes du corps, au même titre que le délire ou les hallucinations ne tentent-elles pas une suppléance dans le réel, au signifiant non advenu dans le symbolique ?
Une psychologiediteclinique : histoire et enjeux contemporains d'un qualificatif
Authors: Casper Marie-Claude , Gumpper Stéphane
Published: August 2018

Dans un contexte d’instauration de nouveaux intitulés de Master, cet article vise à éclairer l’histoire ainsi que certains enjeux contemporains concomitants des usages du qualificatifcliniquesaisi par différentes psychologies, et interroger certains de ses effets dans le champ universitaire et dans les institutions soignantes.