bluuebunny/crossref_metadata_2025 huggingface dataset:
Vernetzung und Integration von Kliniksoftware: Wie viel Krankenhaus 4.0 ist schon heute möglich?
Authors: Weise Holger
Published: September 2019

Das digitalisierte Krankenhaus nur eine ferne Zukunftsvision? Der Geist ist willig, aber das Budget schwach? Stimmt nicht. Vor allem im Sekundär- und Tertiärbereich könnten automatische und integrierte Prozesse schon heute der Standard sein. Die Zukunft hat längst begonnen – und ja, das ist bezahlbar.
Fokus Ergebnisqualität: Die Bewertung von Produktpreisen im Licht der Gesamtkostenbetrachtung
Authors: Fellner Dieter
Published: September 2019

Die Vergütung von Krankenhausleistungen muss und wird sich künftig stärker an den Ergebnissen einer Behandlung ausrichten. In der Folge rücken auch bei der Preisfindung für Medizinprodukte vermehrt die kurz- und langfristige Qualität der Behandlung in Verbindung mit den damit verbundenen gesamten Kosten eines Eingriffs oder einer Behandlung in den Mittelpunkt. Dabei geht es nicht länger „nur“ um Geräte, Implantate und Verbrauchsgüter, sondern um das Management klinischer und postoperativer Prozesse.
Assembly of clathrates from tetrahedral patchy colloids with narrow patches
Authors: Noya Eva G. , Zubieta Itziar , Pine David J. , Sciortino Francesco
Published: September 2019

Here, we revisit the assembly of colloidal tetrahedral patchy particles. Previous studies have shown that the crystallization of diamond from the fluid phase depends more critically on patch width than on the interaction range: particles with patches narrower than 40° crystallize readily and those with wide patches form disordered glass states. We find that the crystalline structure formed from the fluid also depends on the patch width. Whereas particles with intermediate patches assemble into diamond (random stacking of cubic and hexagonal diamond layers), particles with narrow patches (with width ≈20° or less) crystallize frequently into clathrates. Free energy calculations show that clathrates are never (in the pressure-temperature plane) thermodynamically more stable than diamond. The assembly of clathrate structures is thus attributed to kinetic factors that originate from the thermodynamic stabilization of pentagonal rings with respect to hexagonal ones as patches become more directional. These pentagonal rings present in the fluid phase assemble into sII clathrate or into large clusters containing 100 particles and exhibiting icosahedral symmetry. These clusters then grow by interpenetration. Still, the organization of these clusters into extended ordered structures was never observed in the simulations.
Cup-to-vesicle transition of a fluid membrane with spontaneous curvature
Authors: Noguchi Hiroshi
Published: September 2019

The disk-to-vesicle transition of a fluid membrane with no spontaneous curvature is well described by the competition between edge line and curvature energies. However, the transition of asymmetric membranes with spontaneous curvatures is not yet understood. In this study, the shape of the fluid membrane patch with a constant spontaneous curvature and its closing transition to a vesicle is investigated using theory and meshless membrane simulations. It is confirmed that the (meta)stable and transient membranes are well approximated by spherical caps. The membrane Gaussian modulus can be estimated from the cup shape of membrane patches as well as from the transition probability, although the latter estimate gives slightly smaller negative values. Furthermore, the self-assembly dynamics of membranes are presented, in which smaller vesicles are formed at higher spontaneous curvatures, higher edge line tension, and lower density.
Magnetically recyclable Cr complex for the dehydration of glucose to 5-HMF in acidic task specific ionic liquid
Authors: Fu Fei , Shen Minggui , Shang Shibin , Song Zhanqian , Wang Liang
Published: September 2019

Magnetically recyclable Cr complex was synthesized by immobilizing Cr3(CH3COO)7(OH)2 onto the surface of amino modified Fe3O4 particles. The structure of the catalyst was well characterized by Fourier transform infrared (FT-IR), Transmission electron microscope (TEM), Inductively coupled plasma atomic emission spectroscopy (ICP-AES), Energy dispersive X-ray spectroscopy (EDX), Thermal gravity analysis (TG-ATG), Wide-angle X-ray Diffractometry (XRD) and Vibrating Sample Magnetometer (VSM). The prepared catalyst showed good catalytic performance in the conversion of glucose to HMF in acidic task specific ionic liquid (TSIL). Moreover, the catalyst could be magnetically recovered and for successive six runs without significant decrease in its activity.
Feed-forward artificial neural network provides data-driven inference of functional connectivity
Authors: Frolov Nikita , Maksimenko Vladimir , Lüttjohann Annika , Koronovskii Alexey , Hramov Alexander
Published: September 2019

We propose a new model-free method based on the feed-forward artificial neuronal network for detecting functional connectivity in coupled systems. The developed method which does not require large computational costs and which is able to work with short data trials can be used for analysis and reconstruction of connectivity in experimental multichannel data of different nature. We test this approach on the chaotic Rössler system and demonstrate good agreement with the previous well-known results. Then, we use our method to predict functional connectivity thalamo-cortical network of epileptic brain based on ECoG data set of WAG/Rij rats with genetic predisposition to absence epilepsy. We show the emergence of functional interdependence between cortical layers and thalamic nuclei after epileptic discharge onset.
Extraction of monomer-cluster association rate constants from water nucleation data measured at extreme supersaturations
Authors: Li Chenxi , Lippe Martina , Krohn Jan , Signorell Ruth
Published: September 2019

We utilize recently reported data for water nucleation in the uniform postnozzle flow of pulsed Laval expansions to derive water monomer association rates with clusters. The nucleation experiments are carried out at flow temperatures of 87.0 K and 47.5 K and supersaturations of lnS ∼ 41 and 104, respectively. The cluster size distributions are measured at different nucleation times by mass spectrometry coupled with soft single-photon ionization at 13.8 eV. The soft ionization method ensures that the original cluster size distributions are largely preserved upon ionization. We compare our experimental data with predictions by a kinetic model using rate coefficients from a previous ab initio calculation with a master equation approach. The prediction and our experimental data differ, in particular, at the temperature of 87.0 K. Assuming cluster evaporation to be negligible, we derive association rate coefficients between monomer and clusters purely based on our experimental data. The derived dimerization rate lies 2–3 orders of magnitude below the gas kinetic collision limit and agrees with the aforementioned ab initio calculation. Other than the dimerization rate, however, the derived rate coefficients between monomer and cluster j (j ≥ 3) are on the same order of magnitude as the kinetic collision limit. A kinetic model based on these results confirms that coagulation is indeed negligible in our experiments. We further present a detailed analysis of the uncertainties in our experiments and methodology for rate derivation and specify the dependency of the derived rates on uncertainties in monomer and cluster concentrations.
Super-QRT and 4D-mappings reduced from the lattice super-KdV equation
Authors: Carstea A. S. , Takenawa T.
Published: September 2019

Starting from the complete integrable lattice super-KdV equation, two super-mappings are obtained by performing a traveling-wave reduction. The first one is linear and the second is a four dimensional super-Quispel, Roberts, and Thompson (QRT) mapping containing both Grassmann commuting and anticommuting dependent variables. Adapting the classical “staircase” method to the Lax super-matrices of the lattice super-KdV equation, we compute the Lax super-matrices of the mapping and the two invariants; the first one is a pure nilpotent commuting quantity and the second one is given by an elliptic curve containing nilpotent commuting Grassmann coefficients as well. In the case of finitely generated Grassmann algebra with two generators, the super-QRT mapping becomes a four-dimensional ordinary discrete dynamical system that has two invariants but does not satisfy the singularity confinement criterion. It is also observed that the dynamical degree of this system grows quadratically.
Polyacids as Modulators for the Synthesis of UiO-66
Authors: Bentz Kyle C. , Ayala Sergio , Kalaj Mark , Cohen Seth M.
Published: September 2019

Poly(acrylic acid) (PAA) and poly(vinylbenzoic acid) (PBA) were synthesized via reversible addition–fragmentation chain transfer (RAFT) polymerization and used as modulators for the synthesis of the metal–organic framework (MOF) UiO-66 (UiO=University of Oslo). Whereas typical syntheses of UiO-66 require large excesses of acid modulators, such as acetic acid or benzoic acid, to achieve controlled particle size and morphology of the resulting MOF particles, the use of polymerized acids allows for narrow particle size distributions at sub-stoichiometric quantities of modulator. We show using scanning electron microscopy and dynamic light scattering techniques that polyacids can act as alternative modulators for the growth of UiO-66.
A stable dye-sensitized photoelectrosynthesis cell mediated by a NiO overlayer for water oxidation
Authors: Wang Degao , Niu Fujun , Mortelliti Michael J. , Sheridan Matthew V. , Sherman Benjamin D. , Zhu Yong , McBride James R. , Dempsey Jillian L. , Shen Shaohua , Dares Christopher J. , Li Fei , Meyer Thomas J.
Published: September 2019

In the development of photoelectrochemical cells for water splitting or CO
2
reduction, a major challenge is O
2
evolution at photoelectrodes that, in behavior, mimic photosystem II. At an appropriate semiconductor electrode, a water oxidation catalyst must be integrated with a visible light absorber in a stable half-cell configuration. Here, we describe an electrode consisting of a light absorber, an intermediate electron donor layer, and a water oxidation catalyst for sustained light driven water oxidation catalysis. In assembling the electrode on nanoparticle SnO
2
/TiO
2
electrodes, a Ru(II) polypyridyl complex was used as the light absorber, NiO was deposited as an overlayer, and a Ru(II) 2,2′-bipyridine-6,6′-dicarboxylate complex as the water oxidation catalyst. In the final electrode, addition of the NiO overlayer enhanced performance toward water oxidation with the final electrode operating with a 1.1 mA/cm
2
photocurrent density for 2 h without decomposition under one sun illumination in a pH 4.65 solution. We attribute the enhanced performance to the role of NiO as an electron transfer mediator between the light absorber and the catalyst.
Measuring actual learning versus feeling of learning in response to being actively engaged in the classroom
Authors: Deslauriers Louis , McCarty Logan S. , Miller Kelly , Callaghan Kristina , Kestin Greg
Published: September 2019

Significance

Despite active learning being recognized as a superior method of instruction in the classroom, a major recent survey found that most college STEM instructors still choose traditional teaching methods. This article addresses the long-standing question of why students and faculty remain resistant to active learning. Comparing passive lectures with active learning using a randomized experimental approach and identical course materials, we find that students in the active classroom learn more, but they feel like they learn less. We show that this negative correlation is caused in part by the increased cognitive effort required during active learning. Faculty who adopt active learning are encouraged to intervene and address this misperception, and we describe a successful example of such an intervention.
Phase variation in
Mycobacterium tuberculosis glpK
produces transiently heritable drug tolerance
Authors: Safi Hassan , Gopal Pooja , Lingaraju Subramanya , Ma Shuyi , Levine Carly , Dartois Veronique , Yee Michelle , Li Liping , Blanc Landry , Ho Liang Hsin-Pin , Husain Seema , Hoque Mainul , Soteropoulos Patricia , Rustad Tige , Sherman David R. , Dick Thomas , Alland David
Published: September 2019

The length and complexity of tuberculosis (TB) therapy, as well as the propensity of
Mycobacterium tuberculosis
to develop drug resistance, are major barriers to global TB control efforts.
M. tuberculosis
is known to have the ability to enter into a drug-tolerant state, which may explain many of these impediments to TB treatment. We have identified a mechanism of genetically encoded but rapidly reversible drug tolerance in
M. tuberculosis
caused by transient frameshift mutations in a homopolymeric tract (HT) of 7 cytosines (7C) in the
glpK
gene. Inactivating frameshift mutations associated with the 7C HT in
glpK
produce small colonies that exhibit heritable multidrug increases in minimal inhibitory concentrations and decreases in drug-dependent killing; however, reversion back to a fully drug-susceptible large-colony phenotype occurs rapidly through the introduction of additional insertions or deletions in the same
glpK
HT region. These reversible frameshift mutations in the 7C HT of
M. tuberculosis glpK
occur in clinical isolates, accumulate in
M. tuberculosis
-infected mice with further accumulation during drug treatment, and exhibit a reversible transcriptional profile including induction of
dosR
and
sigH
and repression of
kstR
regulons, similar to that observed in other in vitro models of
M. tuberculosis
tolerance. These results suggest that GlpK phase variation may contribute to drug tolerance, treatment failure, and relapse in human TB. Drugs effective against phase-variant
M. tuberculosis
may hasten TB treatment and improve cure rates.
Collective multipole oscillations direct the plasmonic coupling at the nanojunction interfaces
Authors: Hooshmand Nasrin , El-Sayed Mostafa A.
Published: September 2019

Significance

We present a systematic study of the effect of higher-multipolar order plasmon modes on the spectral response and plasmonic coupling of Ag nanoparticle dimers at nanojunction separation and introduce a coupling mechanism. It was found that as the interdimer axis decreases, an increase in the plasmon dipolar and multipolar interaction takes place. Further, we found the plasmonic coupling depends on the density of the dipoles on the nanoparticle; as the dipole density increases, the average multipole density increases, resulting in higher dipole–multipole interactions. This study allows us to advance our understanding of the plasmonic response of coupled metal nanoparticles that have not been previously reported and will be useful to drive future experiments to design more sensitive nanoparticle-based sensors.
Energetics of the exchangeable quinone, Q
B
, in Photosystem II
Authors: De Causmaecker Sven , Douglass Jeffrey S. , Fantuzzi Andrea , Nitschke Wolfgang , Rutherford A. William
Published: September 2019

Significance

The

E
m

values of the 2 Q
B
redox couples,

E
m

(Q
B
/Q
B
•−
) and

E
m

(Q
B
•−
/Q
B
H
2
), in Photosystem II are fundamental for understanding the enzyme function, but they remain vague. Using EPR signals arising from the semiquinone, Q
B
•−
, we have now measured both redox couples. The semiquinone is thermodynamically stable and has a relatively high potential. This minimizes back-reactions and electrons leaking onto O
2
, explaining the remarkable stability of Q
B
•−
. The release of Q
B
H
2
is thermodynamically favorable, and the binding of the substrate PQ is greatly favored over the product PQH
2
: This optimizes PSII function in the presence of a largely reduced plastoquinone pool. This work corrects and explains a recent report of anomalous values for the Q
B
redox couples.
Semi-parametric estimation of the Wilshire creep life prediction model: An application to 2.25Cr-1Mo steel
Authors: Evans M.
Published: September 2019

The Wilshire equation is a recent addition to the literature on safe life prediction. While the effect of temperature on creep life is reasonably understood, the effect of stress isn't. The Wilshire equation deals with this by partitioning over sub ranges of stress, but this approximation can lead to poor life time predictions. This paper introduces a semi-parametric procedure that allows the data itself to identify the stress relationship. When applied to 2.25Cr-1Mo steel it was found that the stress relationship is non-linear, and this semi-parametric version of the Wilshire model had better predictive performance compared to any partitioned Wilshire model. This approach contains a limit to valid extrapolation and the isothermal predictions for creep life have a more realistic pattern of behaviour.
Satellite-based links for quantum key distribution: beam effects and weather dependence
Authors: Liorni Carlo , Kampermann Hermann , Bruß Dagmar
Published: September 2019

The establishment of a world-wide quantum communication network relies on the synergistic integration of satellite-based links and fiber-based networks. The first are helpful for long-distance communication, as the photon losses introduced by the optical fibers are too detrimental for lengths greater than about 200 km. This work aims at giving, on the one hand, a comprehensive and fundamental model for the losses suffered by the quantum signals during the propagation along an atmospheric free-space link. On the other hand, a performance analysis of different quantum key distribution (QKD) implementations is performed, including finite-key effects, focusing on different interesting practical scenarios. The specific approach that we chose allows to precisely model the contribution due to different weather conditions, paving the way towards more accurate feasibility studies of satellite-based QKD missions.
Reservoir engineering using quantum optimal control for qubit reset
Authors: Basilewitsch Daniel , Cosco Francesco , Lo Gullo Nicolino , Möttönen Mikko , Ala-Nissilä Tapio , Koch Christiane P , Maniscalco Sabrina
Published: September 2019

We determine how to optimally reset a superconducting qubit which interacts with a thermal environment in such a way that the coupling strength is tunable. Describing the system in terms of a time-local master equation with time-dependent decay rates and using quantum optimal control theory, we identify temporal shapes of tunable level splittings which maximize the efficiency of the reset protocol in terms of duration and error. Time-dependent level splittings imply a modification of the system-environment coupling, varying the decay rates as well as the Lindblad operators. Our approach thus demonstrates efficient reservoir engineering employing quantum optimal control. We find the optimized reset strategy to consist in maximizing the decay rate from one state and driving non-adiabatic population transfer into this strongly decaying state.
Testing the gravitational field generated by a quantum superposition
Authors: Carlesso M , Bassi A , Paternostro M , Ulbricht H
Published: September 2019

What gravitational field is generated by a massive quantum system in a spatial superposition? Despite decades of intensive theoretical and experimental research, we still do not know the answer. On the experimental side, the difficulty lies in the fact that gravity is weak and requires large masses to be detectable. However, it becomes increasingly difficult to generate spatial quantum superpositions for increasingly large masses, in light of the stronger environmental effects on such systems. Clearly, a delicate balance between the need for strong gravitational effects and weak decoherence should be found. We show that such a trade off could be achieved in an optomechanics scenario that allows to witness whether the gravitational field generated by a quantum system in a spatial superposition is in a coherent superposition or not. We estimate the magnitude of the effect and show that it offers perspectives for observability.
Dark vertical conductance of cavity-embedded semiconductor heterostructures
Authors: Naudet-Baulieu Cassia , Bartolo Nicola , Orso Giuliano , Ciuti Cristiano
Published: September 2019

We present a linear-response nonlocal theory of the electronic conductance along the vertical (growth) direction of a semiconductor heterostructure embedded in a single-mode electromagnetic resonator in the absence of illumination. Our method readily applies to the general class of n-doped semiconductors with parabolic dispersion. The conductance depends on the ground-state properties and virtual collective polaritonic excitations that have been determined via a bosonic treatment in the dipole gauge. We show that, depending on the system parameters, the cavity vacuum effects can enhance or reduce significantly the dark vertical conductance with respect to the bare heterostructure.
An optomechanical heat engine with feedback-controlled in-loop light
Authors: Abari Najmeh Etehadi , De Angelis Giulia Vittoria , Zippilli Stefano , Vitali David
Published: September 2019

The dissipative properties of an optical cavity can be effectively controlled by placing it in a feedback loop where the light at the cavity output is detected and the corresponding signal is used to modulate the amplitude of a laser field which drives the cavity itself. Here we show that this effect can be exploited to improve the performance of an optomechanical heat engine which makes use of polariton excitations as working fluid. In particular we demonstrate that, by employing a positive feedback close to the instability threshold, it is possible to operate this engine also under parameters regimes which are not usable without feedback, and which may significantly ease the practical implementation of this device.
The inverse Bremsstrahlung absorption in the presence of Maxwellian and non-Maxwellian electrons
Authors: Sharifian Mehdi , Ghoveisi Fatemeh , Gholamzadeh Leila , Firouzi Farrashbandi Narges
Published: September 2019

Inverse Bremsstrahlung absorption (IBA) of an intense laser field in plasma containing Maxwellian and non-Maxwellian (with Kappa and q-nonextensive distribution functions) electrons is studied analytically. Our results show that IBA decreases with an increase in temperature at high intensities and a decrease in plasma density for all kinds of distribution functions. Another striking result is that IBA is independent of the laser intensity at low intensity but is dependent on it when the intensity is going to rise. Also, it could be find that the behavior of the absorption as the function of laser intensity for the Kappa distribution with κ = 10 at low intensity is close to that for the Maxwellian distribution, but at high intensity it is close to that in the presence of q-nonextensive electrons with q=0.9. These results provide insights into the inverse Bremsstrahlung absorption in the laser–plasma interactions.
Expansion dynamics of a spherical Bose–Einstein condensate*
Authors: Li Rui-Zong , Gao Tian-You , Zhang Dong-Fang , Peng Shi-Guo , Kong Ling-Ran , Shen Xing , Jiang Kai-Jun
Published: September 2019

We experimentally and theoretically observe the expansion behaviors of a spherical Bose–Einstein condensate. A rubidium condensate is produced in an isotropic optical dipole trap with an asphericity of 0.037. We measure the variation of the condensate size in the expansion process after switching off the trap. The free expansion of the condensate is isotropic, which is different from that of the condensate usually produced in the anisotropic trap. We derive an analytic solution of the expansion behavior based on the spherical symmetry, allowing a quantitative comparison with the experimental measurement. The interaction energy of the condensate is gradually converted into the kinetic energy during the expansion and after a long time the kinetic energy saturates at a constant value. We obtain the interaction energy of the condensate in the trap by probing the long-time expansion velocity, which agrees with the theoretical calculation. This work paves a way to explore novel quantum states of ultracold gases with the spherical symmetry.
Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall
Authors: Moftakhari Hamed , AghaKouchak Amir
Published: September 2019

Floods and debris flows pose a significant threat, especially when extreme rain falls over burned areas. This is an example of a compound event in which two concurrent or consecutive events lead to extreme societal impacts. Compound and cascading hazards are becoming increasingly important and have notable impacts on threatened communities across the world. Wildfire followed by an intense precipitation event can result in a large flood under which the combined impacts of hazard drivers are much more intense than those from individual drivers. Here, we first quantify the change in exposure of natural gas infrastructure to individual hazards, wildfire and floods in the future relative to past. We, then quantify the compound hazards as coincidence likelihood of intense rain over burned areas and analyze the spatial patterns across the State of California, USA. Our results show that not only the exposure of natural gas infrastructure to individual hazards would be higher, the likelihood of compound hazards is expected to increase substantially in a warming climate.
Efforts to Improve Community Awareness Towards the Potential of a Great Earthquake Which Threats Jakarta Based On Geographic Information and 3D Simulation Systems in Matraman District, East Jakarta
Authors: Andromeda Z I , Randi C , Nazhifah K , Syahputra R , Iskandarsyah  , Septyandy M R
Published: September 2019

Indonesia is located in an area of active tectonic plate. This area suffers from natural disasters. Recorded almost every year disasters, such as earthquakes, tsunamis, floods, and fires, occur in several regions in Indonesia. One of the major city in Indonesia is Jakarta. Jakarta as a capital city with urban area has an important position in terms of economy and government. The issue of earthquakes with the magnitude of 8 SR is one of the major disasters that threatening Jakarta. The effort to alleviate losses caused by disasters, it is necessary to inform the community regarding preparation in the face of disasters that will occur. This preparation is needed especially in densely populated areas as part of disaster mitigation measures like Matraman District in East Jakarta. The initial step in this program is to distribute questionnaires to determine the level of knowledge and information about the disaster. Furthermore, by utilising the geographical information system (GIS), evacuation routes when a disaster occurs can be made to adjust the situation of the area. The evacuation routes produced include the fastest and safest routes in evacuation by considering conditions such as road width, car parking, electricity poles, railroad crossings, and blind alley. This evacuation route will be modelled with 3D simulation in several conditions such as railroad crossings, spill markets, crossroads, and one-way lanes when a disaster occurs. This simulation will be the end result in a program to increase public awareness of potential disasters that threaten their area. This research obtains evacuation routes and 3D simulations that have been made are information media that can facilitate people to get the right knowledge about disaster mitigation. The results of the community awareness raising program on potential disasters can be used as a reference for other regions in the effort to mitigate disasters.
BEM solutions to BVPs governed by the anisotropic modified Helmholtz equation for quadratically graded media
Authors: Azis M. I. , Syam R. , Hamzah S.
Published: September 2019

A Boundary Element Method (BEM) is used for obtaining solutions to anisotropic quadratically graded media (FGM) boundary value problems (BVPs) governed by the modified Helmholtz type equation. A technique of transforming the variable coefficient governing equation to a constant coefficient equation is utilized for deriving a boundary integral equation. Some particular problems are considered to illustrate the application of the BEM. The results show the convergence, consistency, and accuracy of the BEM solutions.
Groundwater Conservation with Hole Infiltration of Biopore Cube
Authors: Syahruddin Muhammad Hamzah , Amiruddin  , Halide Halmar , Sakka  , Makhrani
Published: September 2019

Analysis of groundwater conservation with cube biopore infiltration holes using the value of soil permeability, the amount of rainfall, and the depth of the groundwater level. The groundwater conservation research method is carried out by making the cavity biopore infiltration holes to absorb the volume of rainwater and domestic waste water into the soil. Conservation is suitable for homes that have enough yard. The main reason is to use cube infiltration holes to accommodate large and small organic waste. Organic waste is trees, grass and domestic waste. For a small house yard, conservation of ground water enough with a cylindrical hole diameter of 10 cm. Benefits of biopore infiltration holes are reducing surface runoff, producing manure, fertilizing soil, reducing waste piles, and conserving ground water. The research objective was to analyze the cube biopore infiltration holes based on soil permeability, rainfall intensity, depth of groundwater level, and volume of organic waste. The results of the analysis can be obtained from the cube biopore infiltration holes which can absorb all the rainwater which can accommodate all organic waste. The results of permeability testing show that the average soil permeability is 0.00112 cm/s and the yield of maximum discharge runoff water in January is 97.57 cm3/second. The ground water level is two meters. While the volume of organic waste is one cubic per month. The result of the analysis showed that the area of cake absorption was 8.73 m2. When converted to a cube absorption field it takes approximately 8 meters wide by 0.5 meters and a depth of 0.5 meters. When divided into four cavity recharge holes LRB1 obtained area of 4 m2, LRB2 area of 2.7 m2, LRB3 area 2 m2, and LRB4 as reserve.
Heavy metal cadmium (Cd) content in the medaka fish Oryzeas javanicus Bleeker
Authors: Litaay Magdalena , Fadliah Andi Iin , Andriani Irma , Tahir Dahlang
Published: September 2019

The medaka oryzeas fish Oryzias javanicus Bleeker has been widely used as bioindicator animal. The present study aims to assess a lethal dose 50% (LD50) of heavy metal Cadmiun (Cd) towards test animal oryzeas fish. Fish was collected from the estuary of Jeneberang river of Makassar. Samples were acclimatized in a laboratory before being a test. Randomized Complete Design with four treatments and four replicates was applied in this study. Test fish was treated without (control) and with three different levels of Cd concentration as follows 0 mg / L; 0.008 mg / L; 0.01 mg / L and 0.03 mg/L. An observation was done during seven days experiment. Observed parameters included a change in movement, morphological abnormalities (peeled skin) as Cd content in medaka fish. Least Significance Different (LSD) method was applied to see different significant effect amongst treatments. At the end of the experiment, Cd content in test fish was determined by using an Atomic Absorption Spectrophotometer (AAS). The result indicates that medaka fish Oryzeas javanicus showed disorientation movement since day 5 at Cd concentration 0.03 mg / L and increased to the end of the test. Peeled skin happend at day seven at all three treatments (Cd 0.008; 0.01 dan 0.03 mg/L). Cd content in fish was low at concentration of 0.008 mg/L (average 1.50 mg/kg) and the highest at Cd 0.03 mg/L (average 4.19 mg/kg), respectively. Statistical analysis reveals that Cd concentration 0.03 mg/L differs from other treatments. Level of Cd accumulation in O. Javanicus Bleeker increased with an increase in metal concentration in water.
Integrated of Gravity and Magnetic Data to Modeling Structure Subsurface In Bora Geothermal Field Central Sulawesi
Authors: Efendi Rustan , Abdullah  , Syamsuddin Erfan , Rusydi M. , Nirmayanti  , Sugianto Asep , Joni Wiwid
Published: September 2019

This field research is located in a geothermal area expressed by the existence of hot springs. A complex geological structure has shown that the area was in the Palu-Koro fault. The purpose of the study is to achieve a model of subsurface of the area using data collected over gravity data and magnetic data. The two Data were compared in order to validate the models. Furthermore 2-dimensional modeling was performed using two gravity and magnetic lines by means of geo-sys software from Geosoft. The results of the models have a bit difference response by means of the existence of residual indicator that expected as a geothermal reservoir due to fault activity
Two-Dimensional Inversion Magnetotelluric Investigation of the Pariangan Geothermal Field, Indonesia
Authors: Wahyuni  , Aswad Sabrianto , Maria  , Joni Wiwid , Jamaluddin
Published: September 2019

Pariangan geothermal field is located in Tanah Datar District, West Sumatera Province, Indonesia. The structure developed in this region is influenced by a large fault that extends through Sumatera from Banda Aceh to the Gulf Semangko in Lampung and also the pattern of radial faults that follow the development of Complex Marapi Volcanism. This study is aimed at delineating the shallow as well as deeper conductive anomalies related to the geothermal system in the Pariangan area. Dimensionality analysis showed a two-dimensional (2D) behavior for the data, and therefore 2D inversion was performed. The result of magnetotelluric (MT) data processing indicates a low resistivity (<15 Ω.m) distribution at depths of 1300-3000 meter, which is interpreted as the caprock. Reservoir rock is indicated by the medium resistivity (15-93 Ω.m) at depths of 1200-3200 m. Below the reservoir the deep reaching conductive anomaly is interpreted as circulating hot fluids which heat up the fluids in the reservoir due to the subduction process. Type of alteration developed in research area are dominated by argillic type characterized by the presence of illite, kaolinite, montmorillonite, dickite, and halloysite; propylitic type characterized by the presence of chlorite, epidote and, quartz; and phyllic type characterized by the presence of sericite, quartz, and chlorite. Basement rock zone is indicated by the high resistivity (93-1000 Ω.m) at the depths of 1500-6000 m. MT in this study shows a powerful geothermal exploration tools because of its sensitivity to image hot saline fluids as zones of high conductivity.
Reconstructing past landslide models based on subsurface resistivity profiles: case study from Majene West Sulawesi
Authors: Arsyad Ardy , Aswad Sabrianto , Syamsuddin Erfan
Published: September 2019

This paper presents a case study of reconstructing past landslide failure models in a napal geological formation by undertaking a series of geoelectrical tomographies and geotechnical bor-SPT surveys. Study area is located in the National Artery Road 135 Kilometres, Majene – Mamuju, West Sulawesi. Geological formation found in the area is Napal Pambauang Formation. Massive ground movement is obviously detected in the area, and several landslide events have been occured in the last 10 years. In order to derive an effective technnique of mitigating the landslide in the area, past landslide failure models are needed to reconstruct. Therefore, 2D geoelectric tomographies survey combined several geotechnical bors were undertaken. A Framework of geophysics and geotechnical investigations was developed and implemented. The results show that slope failure models can be mapped, following unique patterns in the subsurface resistivity models. The finding slope failure models are well agreement with successive scarp patterns founded in the slope area. Past and recent landslides and future landslide are derived and this can be employed to design effective landslide mitigation strategies.
Identification of eroded sediment layer thickness and depth of Mahakam River at Tenggarong Bridge Area, Kutai Kartanegara East Kalimantan using Ground Penetrating Radar Method
Authors: Rasimeng S , Mandang I , Suharno
Published: September 2019

GPR measurements of lines are two lines intersect under the bridge of Tenggarong (southwest to northeast) along the 377 meters (segment-1 Line04) and 457 meters (Line03) and the other is Southeast to Northwest along the 533 meters (segment-2 Line04) with a starting point It is located on the side of the Mahakam River (Southern) to the West of Kumala island. and there is one track in this area, which is to the northeast to the southwest along the south side of the Mahakam River (Line02) with the length of line is 780 meters. This research used the AKULA-9000C, 100 MHz antenna frequencies, and in time mode. The purpose of this research is to know the depth of the bottom of the Mahakam River, and the thickness of sediments eroded around the bridge of Tenggarong. GPR data processing using the ReflexW software ver. 8.5 through static correction, subtract-mean (dewow) filter, gain, background removal, band-pass filters, and fk-filter. To convert two-way time of electromagnetic wave propagation data to depth units, we use velocity adaptation methods by selecting velocity value each layer anomaly. Cross sections of the line from line02 and Line03 showed that the average thickness of the layer of sediment erosion over 15 meters and depth variation ofthe river was 10 to 40 meters. The shallow depth is under the Tenggarong Bridge (10m). In addition, on Line04 shows the deepest depth of the Mahakam River is 35 meters, located in the middle of Line04 or the center of Mahakam river flow.
Geochemical Fluids Assessment of Gunung Endut Geothermal Area, Banten Province, Indonesia
Authors: Risman C. , Sahdarani D. N. , Sihombing F. M. H. , Supriyanto
Published: September 2019

Geochemical assessment was completed in Gunung Endut geothermal area to determine fluid characteristics discharging from their natural surface manifestations. Gunung Endut geothermal area is centralised in the western part of the region. Three surface manifestations located in Desa Handeuleum, Cikawah and Gajrug appears along the apparent structural (fault) line. Diluted chloride- carbonate water belongs to partially equilibrated group may indicate mixing between chloride water and groundwater. Quartz and Na-K geothermometer indicated reservoir temperature of 107 – 127 ºC and 111 – 132 ºC respectively. Geoindicators of Cl/B indicated that there are two separate reservoirs in the sub-surface. Geoindicators of Na/K and Na/Ca revealed that all the manifestations lie in the outflow zone of Gunung Endut geothermal area.
Phase Changes in the Atmospheric Hydrology Cycle
Authors: Aqramunnisah  , Suriamihardja D A , Assegaf A H , Samad B A
Published: September 2019

A natural distillation process as an atmospheric machine in producing fresh water from seawater is of importance to be relearned. This study aims to scrutinize a thermodynamic cycle involving evaporation on sea surface and condensation at a possible height to occur in lower temperature and pressure by comparing reversible and irreversible process. The main stratification of pressure and temperature are obtained from local radiosonde record. The result of this study will give an explanation about how the diabatic process restores the energy to maintain the system equilibrium.
Distribution of Soft Coral Octocorallia (Alcyonacea) in coastal waters of Gonda, Polewali-Mandar, West Sulawesi
Authors: Wirabuana Ayub , Litaay Magdalena , Moka Willem , Priosambodo Dody
Published: September 2019

The research on “Distribution of Soft Coral Octocorallia: Alcyonacea population in coastal waters of Gonda, Polewali-Mandar, West Sulawesi” has been done from August to December 2017. This study aims to determine the soft coral distribution and diversity at different depths in Coastal waters of Gonda, Polewali-Mandar, West Sulawesi. The data collection was performed by using the “Line Intercept Transect (LIT)” method with 50 meters transect at a depth of 3 meters and 10 meters at each station. The transect line was following the contour lines. Sample identification was performed by means of video recording. Environmental parameters including temperature, salinity, dissolved oxygen, current, brightness, turbidity, and pH was measured during field campaign, respectively. Data analysis was done by using the Shannon-Wiener Diversity Index, Uniformity index, Dominance index and Morisita Index. The results showed that 16 species from four families of Soft Coral has been found in Gonda Beach, where the number of species found at 10m depth are higher than 3m depth, respectively. The average value of the diversity index at 3m depth (1.62) is higher than at 10m depth (1.34), but both are still classified in the moderate category. The pattern of population distribution in the overall site at this location tends to be random.
ENSO impacts during west and east monsoon to the ocean current and water mass characteristics in the Makassar Strait
Authors: Jamil F , Sakka  , Berlianty D
Published: September 2019

Ocean and atmospheric interactions are known by the presence of El-Nino Southern Oscillation (ENSO) in the Pacific Ocean, dipole mode in the Indian Ocean, and Indonesian-Throughflow (ITF). Those interactions have impacts to oceanographic conditions of Indonesian waters, especially Makassar Strait as main route of ITF which carries warm water masses to Indian Ocean due to the El-Nino and La-Nina as part of global scale oceanic belt. The purpose of this research is to understand the ENSO effect on spatio-temporal of current patterns and characteristics of water mass, namely temperature and salinity during west and east monsoon in the Makassar Strait. This study are using the ENSO index data from NOAA between year 2000-2015 and 1/4 degrees resolution of temperature, salinity, and currents monthly model from Copernicus Marine Environment and Monitoring System (CMEMS) with focus in February and August 2010 and 2015 to represents respectively for west and east monsoon period during the ENSO year. The results showed that surface currents were stronger during La-Nina with speeds of 0.8 to 1.2 m/s compared to El-Nino event with speeds of 0.6-0.7 m/s and it is higher in east monsoon. During west monsoon the current leads to the east and reversely the current pattern changes to the west during east monsoon. The temperature and salinity when La-Nina events are about 1°C higher and 0.7 psu lower than El-Nino events. Based on the results, in general that the impacts of El-Nino an La-Nina events to the Makassar Strait are clearly shown during east monsoon.
Research on Application of Highway Green Construction Technology
Authors: Dong Zhang , Zhaoming Wang , Zhiqiang Liu , Minmin Yuan
Published: September 2019

Studing on Guangdong Renbo highway, the project design, process improvement and technology promotion of green construction were carried out for highway construction. By establishing a green environmental protection construction management system, promoting the application of green construction technology, vigorously implements the green building technology methods and management concepts throughout the line, and comprehensively enhances the technical level of energy saving and environmental protection of highway construction.
Effect of temperature on road pass-by noise of light vehicle
Authors: Yuan Minmin , Ni Dong , Zhang Dong , Wei Xianwei , Wang Zhaoming , Wang Chao
Published: September 2019

Traffic noise is an important evaluation index of urban environmental quality. The level of traffic noise is affected by many environmental factors. Compared with close proximity method (CPX method) in measurement for calculating temperature coefficient, using statistical pass-by method (SPB method) is more suitable for traffic noise evaluation. In order to verify the influence of temperature on road traffic noise, we use SPB method and light vehicles to track and test different types of road noise in a period of time, and record the road temperature and air temperature at the same time. The experimental results show that the vehicle pass-by noise decreases with the increase of temperature, and the noise level of porous asphalt pavement changes little with temperature compared to dense graded pavement.
Research on Intelligent Service Area of Urban Green Highway
Authors: Li Zhengkai , Lu Hui , He Qinghua , Yue Weijie , Lin Haiteng , Chen Chao , Wang Zhaoming
Published: September 2019

The intelligent service area can meet the needs of passengers for convenient, efficient and personalized services. High quality and high standard service area can improve the service level for passengers, also can improve the services for the management. Based on this, an advanced technology, such as the internet, web of things, image recognition and GIS, is proposed. Taking the expressway from Huadu to Dongguan as the research object, this paper focuses on improving the informatization level of expressway service area and creating intelligent service area. The overall framework of the smart expressway service area is constructed, the infrastructure configuration requirements of the intelligent expressway service area are put forward. The research results have important reference value to promote the industry development.
Research on the Defense Safety Design of Building’s Outer Environment Based on Weaken the Spatial Blind Area—— Take Gated Residential Communities in Changchun as an Example
Authors: Wang Keqi , Chen Xiaodong , Pang Tongtong
Published: September 2019

Rapid urbanization and planning idea of huge block lead to the special urban space structure in most China city. Combined with the construction of urban connotation lags behind, serious results in the highlight problem of pathological environmental issues that predispose crime, such as the spatial blind area. Buildings’ outer environment is significant for some kinds of crime. Spatial blind areas are adverse to crime prevention and control which is a key issue of the defense safety design. A favorable buildings’ outer environment(abbr: BOE) provides an entertainment and communication place for residents. However, the unfavorable BOE might bring about spatial blind areas. The author puts forward three kinds of spatial blind areas, which are the position-based spatial blind area, the morphology-based spatial blind area and the atmosphere-based spatial blind area. Taking Changchun gated residential communities as an example, the author analyzes the components of residential BOE, such as building element, landscape element and the path elements. Ultimately, the author proposes the strategies of defense safety about how to reduce spatial blind area.
A Probabilistic Prediction Model for Window Opening during Transition Seasons in Office Building
Authors: Liu Jing , Yao Runming , McCloy Rechel
Published: September 2019

Window operation of occupants in building has close relationship with indoor air quality, indoor thermal environment and building energy performance. The objective of this study was to understand occupants’ interaction with window opening in transition seasons considering the influence of subject type (e.g. active and passive respondents) and to develop corresponding predictive models. An investigation was carried out in non-air-conditioned building in the UK covering the period from September to November. Outdoor temperature in this study was determined as good predictor for window operation. The differences in window opening probabilities between active and passive subjects were significant. Active occupants preferred to open window for fresh air or for indoor thermal condition adjustment, even though the outdoor air temperature sometimes were less than 12 °C. Proper utilization of windows in transition seasons contributed significantly to building energy saving and further improve energy efficiency in buildings.