bluuebunny/crossref_metadata_2025 huggingface dataset:
Sarothrogammarus yiiruae, a new species of Amphipoda (Gammaridae) from China
Authors: Zheng Yami , Hou Zhonge , Li Shuqiang
Published: July 2019

A relic amphipod of the Tethys, Sarothrogammarusyiiruaesp. nov., is described from Xinjiang, China. The new species is characterized by the absence of eyes; having the palm of the propodus without a mid-palmar spine on gnathopods I–II; a weakly concave coxal plate IV; narrow bases of pereopods V–VII; a peduncle of uropod I without a basofacial spine; uropod III longer than uropods I–II, a scale-like inner ramus, and a biarticulate outer ramus with distinct second article. Detailed morphological comparisons with related species are discussed. Genetic distances of the new and related species are provided as proof of species identification.
High species diversity of the soft coral family Xeniidae (Octocorallia, Alcyonacea) in the temperate region of Japan revealed by morphological and molecular analyses
Authors: Koido Tatsuki , Imahara Yukimitsu , Fukami Hironobu
Published: July 2019

The soft coral family Xeniidae, commonly found in tropical and subtropical regions, consists of 20 genera and 162 species. To date, few studies on this family have been conducted in Japan, especially at higher latitudes. Although molecular phylogenetic analyses have recently been used to distinguish soft coral species, it is difficult to identify species and genera in this family due to the limited taxonomic indices and high morphological variation. In this study, we found a large Xeniidae community off the coast of Oshima Island (31°31.35'N, 131°24.27'E) at Miyazaki, Kyushu Island, located in the temperate region of Japan. The species composition and molecular phylogenetic relationships were investigated to uncover the species diversity of Xeniidae in this community. A total of 182 xeniid specimens were collected and identified to the species level, after which the samples were molecularly analyzed using a mitochondrial marker (ND2) and a nuclear marker (ITS) to infer the phylogenetic relationships. A total of 14 xeniid species were identified, including five undescribed species from five genera (Anthelia, Heteroxenia, Sympodium, Xenia, and Yamazatum). Miyazaki was identified as having the highest xeniid species diversity in Japan. The molecular phylogenetic trees inferred from each marker recovered very similar topologies: four genera (Anthelia, Heteroxenia, Sympodium, and Yamazatum) were monophyletic, whereas one (Xenia) was polyphyletic. Thus, except for Xenia, the morphological characteristics used for traditional taxonomy well reflected the phylogeny of the Xeniidae at the genus level. On the other hand, our results show that further taxonomic revisions of Xenia are needed.
Ten newly recorded species of xyleborine ambrosia beetles (Coleoptera, Curculionidae, Scolytinae, Xyleborini) from Thailand
Authors: Sittichaya Wisut , Smith Sarah M. , Beaver Roger A.
Published: July 2019

Ten species of ambrosia beetles of the tribe Xyleborini,Amasabeesoni(Eggers, 1930),Amasaopalescens(Schedl, 1937),Amasacylindrotomica(Schedl, 1939),ArixyleborushirsutulusSchedl, 1969,Beaveriumlatus(Eggers, 1923),Cnestusprotensus(Eggers, 1930),Coptodryasquadricostata(Schedl, 1942),CryptoxyleborusconfususBrowne, 1950,Cryptoxyleboruspercuneolus(Schedl, 1951) andCyclorhipidionvigilans(Schedl, 1939), are recorded here for the first time in Thailand. Diagnostic characters, illustrations, distribution and biological data are provided for each species.Xylosandrusramulorum(Schedl, 1957),stat. res.is removed from synonymy withAmasacylindrotomicaand reinstated as a valid species.
Size variation and geographical distribution of the luminous earthworm Pontodrilus litoralis (Grube, 1855) (Clitellata, Megascolecidae) in Southeast Asia and Japan
Authors: Seesamut Teerapong , Jirapatrasilp Parin , Chanabun Ratmanee , Oba Yuichi , Panha Somsak
Published: July 2019

The luminous earthworm Pontodriluslitoralis (Grube, 1855) occurs in a very wide range of subtropical and tropical coastal areas. Morphometrics on size variation (number of segments, body length and diameter) and genetic analysis using the mitochondrial cytochrome c oxidase subunit 1 (COI) gene sequence were conducted on 14 populations of P.litoralis from Southeast Asia and Japan. Statistical inference on morphometric data revealed significantly different size variations in the body length and diameter among these 14 populations of P.litoralis. However, discordance between the morphometric and mitochondrial COI gene-based phylogenetic analyses was evident, where the size variations in P.litoralis showed a different pattern from the COI genetic differences. The update on the current distribution of P.litoralis is reported and revealed different aspects of the littoral habitat characteristics between Southeast Asia and Japan.
Reviving the consumption of insects in Japan: a promising case of hebo (Vespula spp., wasps) by high school club activities
Authors: Nonaka K. , Yanagihara H.
Published: July 2019

For people who hunt and eat hebo (Vespula spp., wasps) it is more about culture than it is about food production or environmental sustainability in mountainous central Japan. Individuals who currently semi-cultivate hebo do not intend to industrialize hebo semi-cultivation. Semi-cultivation of hebo is a seasonal activity and it is a hobby for them. This paper focuses on the declining number of wasp hunters. The number declined because younger generations did not take up the hobby or moved to urban areas in search of jobs. Hebo hunters thus consisted of seniors only. The number further declined as those who reached old age were no longer able to practice hebo hunting. Very recently, initiated a promising new development at Ena Agricultural High School. The support to the Hebo Club initiative was quickly expanded and now covers the members belonging to the Japan Vespula Association, and academics involved in edible insect research. We present an overview of the efforts of hebo hunters to maintain and promote the use of Vespula spp. as food and we describe the Hebo Club, a promising recent initiative spearheaded by the students of Ena Agricultural High School. The information was collected between fiscal 2015 and 2017 (namely from September 2015 to March 2018) by participant observation and semi-structured interviews with hebo hunters collaborating with the Hebo Club activities. The Hebo Club uses a hands-on approach: students gain knowledge on edible wasps and their semi-cultivation by actively engaging in the semi-cultivation of the wasps. The club thus teaches the students about resource use by engaging in resource use. The students are taught by experienced wasp hunters how to find, collect, house, and raise hebo. The Hebo Club’s colonies are housed in a shed in the school research forest. By cooperating with the members belonging to various Hebo Associations of south-eastern Gifu and northern Aichi, the students experience the variation in employed techniques and equipment, and make observations of hebo biology and ecology in different environments. Other than the hebo season, the club practice develops their idea for local development and applying it to tourism according to the evaluation of their activities. The successful beginning of the Hebo Club, a well-organized cultural initiative spearheaded by youngsters who are backed by seniors, is indicative of how people caring about hebo culture in central mountainous Japan maintains and preserves its culture and identity.
Interval-Valued Intuitionistic Fuzzy Topsis-Based Model for Troubleshooting Marine Diesel Engine Auxiliary System
Authors: Aikhuele D O , Turan F M , Odofin S M , Ansah R H
Published: July 2019

In this paper, we present an interval-valued Intuitionistic Fuzzy TOPSIS model, which is based on an improved score function for detecting failure in a marine diesel engine auxiliary system, using groups of experts’ opinions to detect the root cause of failure in the engine system and the area most affected by failures in the diesel engine. The improved score function has been used for the computation of the separation measures from the intuitionistic fuzzy positive ideal solution (IFPIS) and intuitionistic fuzzy negative ideal solution (IFNIS) of alternatives while the criteria weight have been determined using an intuitionistic fuzzy entropy. The study is aimed at providing an alternative method for the identification and analysis of failure modes in engine systems. The results from the study show that although detection of failures in Engines is quite difficult to identify due to the dependency of the engine systems on each other, however using intuitionistic fuzzy multi-criteria decision-making method the faults/failure can easily be diagnosed.
Shock Resilience of Structural Pillars in Naval Vessels
Authors: Rigby J C , Moss C , Thomas G
Published: July 2019

Although structural pillars are extensively used in commercial vessels, traditionally their use on board UK warships has been discouraged. This is due to the tendency of pillars to “punch through” the deck when subjected to the high impulse loading of shock from underwater explosions (UNDEX). There are however many spaces within naval ships that would significantly benefit from the wide-open spaces created from the use of pillars as opposed to full bulkheads, such as machinery rooms, mooring decks and accommodation flats. This paper re-addresses the question of a shock capable pillar, looking at how a pillar can be designed or mounted to increase its resilience to shock from underwater explosions. It is proposed that the advice against the use of pillars in warships could be unfounded; this is supported by the fact that not all navies reject their use. The results of this study imply that as long as the pillar is sited properly on primary structural members, then pillar buckling should occur long before “punch though”.
Hydrodynamic Interaction Between Ships and Restricted Waterways
Authors: Lataire E , Vantorre M
Published: July 2019

In open and unrestricted waters the water displaced by a forward sailing vessel can travel without major obstruction underneath and along the ship. In restricted and shallow sailing conditions, the displaced water is squeezed between the hull and the bottom and/or the bank. This results in higher flow velocities and as a consequence a pressure drop around the same hull. In the vicinity of a bank this pressure drop generates a combination of forces and moments on the vessel, known as bank effects. The major achievement of the presented research is the development of a realistic and robust formulation for these bank effects. This knowledge is acquired with an extensive literature study on one hand and with dedicated model tests carried out in different towing tanks on the other. The majority of the utilised model tests were carried out in the shallow water towing tank at Flanders Hydraulics Research in Antwerp, Belgium. The data set on bank effects consists of more than 8 000 unique model test setups (which is by far the most elaborate research ever carried out on this subject). These model tests provide the input for the analysis of bank effects and the creation of the mathematical model.

Overall the magnitude of the bank induced forces increase with:
 A higher forward speed of the ship
 A higher propeller load
 A lower under keel clearance
 A more confined navigation area: steeper banks, smaller channel width
 A smaller distance between ship and bank

The mathematical model copes with a wide range of ship types and bank configurations and is suitable for implementation (and has been implemented) in full mission bridge simulators which can be used for training purposes as well as for research to support the admittance policy or exploitation of ports and waterways.
Backstepping Control of Nonlinear Roll Motion for a Trawler with Fin Stabilizer
Authors: Demirel H , Doğrul A , Sezen S , Alarçin F
Published: July 2019

A backstepping control design procedure for nonlinear fin roll control of a trawler is presented in this paper. A roll equation consisting of linear and nonlinear damping and restoring moment on the roll response is expressed. Flow analyses are carried out for a scaled model of trawler type fishing vessel including fin stabilizers on both sides of the
hull. The fin stabilizer geometry is chosen as NACA 0015 foil section which is widely used in the literature. The flow analyses are performed by using a commercial computational fluid dynamics (CFD) software based on finite volume method. The flow problem is modeled in a 3-dimensional manner while the flow is considered as steady,
incompressible and fully turbulent. The numerical model consists of the ship wetted surface and the fin stabilizer in order to investigate the hull-fin interaction. Non dimensional lift coefficients of the fin stabilizer for different angles of attack are gained. Both controlled and uncontrolled roll motions are examined and simulated in time domain for the maximum lift coefficient. Backstepping controller for roll motion has given a rapid and precise result.
Development of Automatic Mode Detection System by Implementing the Statistical Analysis of Ship Data to Monitor the Performance
Authors: Zaman I , Pazouki K , Norman R , Younessi S , Coleman S
Published: July 2019

The shipping industry depends on a global regulatory framework to operate efficiently. The industry is currently facing various technical and regulatory challenges. Performance monitoring, vessel optimisation, reduction of emissions and maintenance have become high priorities for ship operators. The marine industry is also moving towards autonomous operation to reduce human error. The rate of sensor technology implementation has increased and also raised new technological challenges. The analysis of sensor data creates new challenges to achieve operational excellence. This paper presents the implementation of statistical analysis on ship data and develops a system to automatically detect the vessel operational modes based on sensor data.
Perspectives for a Wind Assisted Ship Propulsion
Authors: Bentin M , Kotzur S , Schlaak, M , Zastrau D , Freye D
Published: July 2019

For three different wind propulsion technologies, the energy saving potential of sea going cargo vessels are discussed: a kite, a Flettner rotor and a Dynarig-sail. The energy saving potential can be increased significantly if the route can be optimized when using a wind assisted ship propulsion. The increase of travelling time due to a route adoption is within the frame of the commonly accepted uncertainty in supply chains and can be limited or adjusted in the route optimization software as a parameter. The calculated saving potential depends on several parameters: the considered wind propulsion system, the route, the kind of ship (bulker, multipurpose carrier, tanker), as well as the ship speed and the weather. The cost-effectiveness of the installation of a wind propulsion system strongly depends on the fuel price, the ship speed and the international policy concerning the ship emissions.
An ICOR Approach Towards Ship Maintenance Software Development
Authors: Bayer D , Aydın O , Celik M
Published: July 2019

Ship maintenance is one of the key processes to improve system performance and reliability onboard. Maintenance onboard ships is required to be performed in a planned manner because safe and efficient operation of a ship is very much depending on equipment reliability in operational level. A planned maintenance system (PMS), mainly supported with software, is established to monitor the maintenance implementations on board ships. This study aims to assess the effectiveness of onboard maintenance and limited with the procedures and specific softwares employed for the maintenance on board. Specifically, the process analysis approach is developed to execute the existing ship PMS phases based on four dimensions such as input, control, output, resources (ICOR). Besides the critical points to be improved in ship maintenance, this research reveals recommendations to increase the functionality of selected software in terms of workload balance, smart scheduling and safe working environment. To demonstrate the functional improvements, an illustrative case study on an auxiliary diesel generator maintenance routines are conducted. The contributions of the study are expected in both ship operations management and marine software development.
An Experimental Study of Ship Motions During Replenishment at Sea Operations Between a Supply Vessel and a Landing Helicopter Dock
Authors: Mathew J , Sgarioto D , Duffy J , Macfarlane G , Denehy S , Norman J , Cameron A , Eutick N , van Walree F
Published: July 2019

Hydrodynamic interactions during Replenishment at Sea (RAS) operations can lead to large ship motions and make it difficult for vessels to maintain station during the operation. A research program has been established which aims to validate numerical seakeeping tools to enable the development of enhanced operator guidance for RAS. This paper presents analysis of the first phase of scale model experiments and focuses on the influence that both the lateral and longitudinal separations between two vessels have on the interactions during RAS. The experiments are conducted in regular head seas on a Landing Helicopter Dock (LHD) and a Supply Vessel (SV) in intermediate water depth. The SV is shorter than the LHD by approximately 17%, but due to its larger block coefficient, it displaces almost 16% more than the LHD. Generally, the motions of the SV were larger than the LHD. It was found that hydrodynamic interactions can lead to large SV roll motions in head seas. Directions for future work are provided.
A Research on Techniques, Models and Methods Proposed for Ship Collision Avoidance Path Planning Problem
Authors: Fışkın R , Kişi H , Nasibov E
Published: July 2019

The development of soft computing techniques in recent years has encouraged researchers to study on the path planning problem in ship collision avoidance. These techniques have widely been implemented in marine industry and technology-oriented novel solutions have been introduced. Various models, methods and techniques have been proposed to solve the mentioned path planning problem with the aim of preventing reoccurrence of the problem and thus strengthening marine safety as well as providing fuel consumption efficiency. The purpose of this study is to scrutinize the models, methods and technologies proposed to settle the path planning issue in ship collision avoidance. The study also aims to provide certain bibliometric information which develops a literature map of the related field. For this purpose, a thorough literature review has been carried out. The results of the study have pointedly showed that the artificial intelligence methods, fuzzy logic and heuristic algorithms have greatly been used by the researchers who are interested in the related field.
Lightship Weight Estimation of Wind Farm Support Vessels at the Initial Design Stage
Authors: Bondarenko O V
Published: July 2019

The issue of the determination of lightship weight estimates of wind farm support vessels (WFSV) is considered. The algorithm of determination of components of the lightship weight is suggested. The hull weight of the ships suggested to be calculated through the surface area of the principal structural elements using the parametrical model. The formula for calculation of weight and volume of the superstructures was obtained by making the 3D model of the superstructures of the most widespread projects of WFSV. Using the statistical data processing the dependences were obtained for the determination of engine, gearbox and waterjet weights, which are used in WFSV. The results of the comparative analysis of the lightship weight of WFSV are given.
Ship Manoeuvring Prediction Based on Numerical Towing Tank Technique
Authors: Yao J , Cheng X , Liu Z
Published: July 2019

A practical procedure is proposed in this paper to predict ship manoeuvrability. A three degrees of freedom MMG (Japanese Manoeuvring Mathematical Modelling Group)-type model is established to simulate rudder manoeuver. Propeller thrust and rudder loads are calculated by empirical formulas, whereas the hull forces as well as moment are determined with hydrodynamic derivatives which are derived from CFD (Computational Fluid Dynamics) computations. An own developed RANS (Reynolds-Averaged Naiver-Stokes) solver on the base of OpenFOAM is applied to simulate a range of PMM (Planar Motion Mechanism) tests and Fourier analyses of the computed results are carried out to obtain the required derivatives. In order to demonstrate the effectivity of the whole procedure and the RANS computations, the US (United States) combatant DTMB 5415 is taken as a sample for an application. Forced motions of surge, sway, yaw and yaw with drift for the bare hull with bilge keels are simulated. Thereafter, simulations of standard rudder manoeuvers, i.e. turning and zigzag, are performed by applying the computed derivatives. The results are compared with available measured data. It has been shown that the present procedure together with the RANS method can be used to evaluate the manoeuvrability of a ship since general good agreements between the simulated results and measured data are achieved.
Dry-Docking Time and Labour
Authors: Dev A K , Saha M
Published: July 2019

The duration of stay of a ship in a drydock depends on the scope of routine underwater (submerged portion of the ship’s hull) repairing works (dry-docking works only) to be carried out. More specifically, the repairing works that are affected by outside water. These are, mainly, hull cleaning, coating (blasting and painting), rudder, propeller, stern tube aft seal, hull anodes, ICCP, sea valves, sea chests, tunnel thruster(s), bottom plugs, underwater structural steel (bottom and shipside) and so on. These dry-docking works dictate ships’ dry-docking time (days) and labour (man-days). Then what about the deadweight, age and type? Do these have any impact on dry-docking time and labour? An attempt has been made in this article to examine if there exist any possible relationship between a ships’ dry-docking time and its labour, and deadweight, age and type. Dry-docking time and related information for 586 cargo ships and dry-docking labour and related information for 50 cargo ships of various deadweights, ages and types were collected from a single shipyard. These were analyzed and presented in both tabular and graphical forms to demonstrate the possible relationship between dry-docking time and labour, and deadweight, age and type of ships. Ships’ dry-docking time and labour are very vital for both the ship owner and the shipyard because various charges in drydock are many folds higher than that at quay-side. As such, the reduction in ships’ dry-docking time and labour contributes in saving for the ship owner and increases the earning for the shipyard. A proper estimation of ships’ dry-docking time and labour can achieve this. In order to do so, the past information/data about ships’ dry-docking time and labour may serve a practical guide to prepare an achievable time and labour planning for dry-docking works. In this article, the authors have attempted to identify the independent variables that influence ships’ dry-docking time and labour (dependent variables) and suggested their possible inter-relationships. The inter-relationships between the independent variables (deadweight, age and type) and dependent variables (time and labour) appear to be linear.
An Application of Machine Learning to Shipping Emission Inventory
Authors: Fletcher T , Garaniya V , Chai S , Abbassi R , Yu H , Van D C , Brown R J , Khan F
Published: July 2019

The objective of this study is to develop a shipping emission inventory model incorporating Machine Learning (ML) tools to estimate gaseous emissions. The tools enhance the emission inventories which currently rely on emission factors. The current inventories apply varied methodologies to estimate emissions with mixed accuracy. Comprehensive Bottom-up approach have the potential to provide very accurate results but require quality input. ML models have proven to be an accurate method of predicting responses for a set of data, with emission inventories an area unexplored with ML algorithms. Five ML models were applied to the emission data with the best-fit model judged based on comparing the real mean square errors and the R-values of each model. The primary gases studied are from a vessel measurement campaign in three modes of operation; berthing, manoeuvring, and cruising. The manoeuvring phase was identified as key for model selection for which two models performed best.
Estimation of Hydrodynamic Coefficients of a Nonlinear Manoeuvring Mathematical Model With Free-Running Ship Model Tests
Authors: Xu Haitong , Hinostroza M A , Guedes Soares C
Published: July 2019

Free-running model tests have been carried out based on a scaled chemical tanker ship model, having a guidance, control and navigation system developed and implemented in LabVIEW. In order to make the modelling more flexible and physically more realistic, a modified version of Abkowitz model was introduced. During the identification process, the model’s structure is fixed and its parameters have been obtained using system identification. A global optimization algorithm has been used to search the optimum values and minimize the loss functions. In order to reduce the effect of noise in the variables, different loss functions considering the empirical errors and generalization performance have been defined and implemented in the system identification program. The hydrodynamic coefficients have been identified based on the manoeuvring test data of free-running ship model. Validations of the system identification algorithm were also carried out and the comparisons with experiments demonstrated the effectiveness of the proposed system identification method.
Los asentamientos rurales de época romana en el contexto del Baixo Miño: el yacimiento de Currás, Tomiño
Authors: González Soutelo Silvia , Pérez Losada Fermín E. , Valle Abad Patricia , Vázquez Mato Martiño X.
Published: July 2019

El yacimiento arqueológico de Currás (Tomiño), descubierto en el año 1972, ha sido objeto de nuevos estudios 40 años después. Gracias al proyecto de investigación llevado a cabo entre los años 2013 y 2015, se ha recuperado material gráfico y arqueológico inédito de la primera intervención, y se han documentado en detalle las principales características de este yacimiento, lo que ha permitido obtener una percepción más completa de este asentamiento romano y de su necrópolis tardorromana y altomedieval.
En este artículo presentamos los principales resultados de esta investigación que aporta nuevos datos sobre los asentamientos rurales en el territorio del Baixo Miño y consecuentemente en el Noroeste de la Península Ibérica.

[gl] O xacemento arqueolóxico de Currás (Tomiño), descuberto no ano 1972, voltou a ser obxecto de estudio 40 anos despois. Grazas a un proxecto de investigación levado a cabo entre os anos 2013 e 2015 recuperouse material gráfico e arqueolóxico inédito do momento da descuberta, así como se documentaron en detalle as principais características deste xacemento romano e da súa necrópole tardorromana e altomedieval.
Neste artigo presentamos os principais resultados deste estudo que aporta novas consideracións sobre este tipo de asentamentos rurais no territorio do Baixo Miño e consecuentemente no Noroeste da Península Ibérica.
Scribes of the Council of Mondoñedo in the 16th and 17th centuries
Authors: Fernández Suárez Gonzalo F.
Published: July 2019

As its title indicates, this article studies the notaries of the council of Mondoñedo between the 16th and 17th centuries, trying to answer questions such as the origin of the notary office, the appointment system, duration and cessation in the office; its functions, the places of exercise, the socioprofessional extraction of its owners and their geographical origin.
Sardine (Sardina pilchardus) spawning in the light of fat content analysis
Authors: Zorica Barbara , Anđelić Ivana , Čikeš Keč Vanja
Published: July 2019

Sardine samples from commercial catches obtained by purse seiners operating in Croatian fishing grounds (eastern Adriatic Sea) were collected monthly from March 2017 to February 2018 (excluding January due to a fishing ban). A total of 1085 sardines were analysed. Their total body length and mass ranged from 11.5 to 16.9 cm (mean±SD: 13.9±0.03 cm) and from 11.30 to 54.03 g (mean±SD: 20.31±0.161 g), respectively. Analysis of the length-mass relationship showed positive allometric growth (b=3.3573, r=0.948). Female specimens were predominant (m/f=0.404). According to the monthly gonadosomatic index values, spawning occurred from November to February, which was consistent with previous investigations. The monthly analysis of fat content in the gonads, liver and muscles indicated that the fat content in each studied tissue oscillated seasonally regardless of sex. These alternations were linked to the sardine’s reproductive cycle.
Checklist with first records for the Echinoderms of northern Tunisia (central Mediterranean Sea)
Authors: Chammem Hayfa , Ben Souissi Jamila , Pérez-Ruzafa Angel
Published: July 2019

Tunisia occupies a strategic biogeographic position in the Mediterranean Sea and the Strait of Sicily is considered a biogeographical boundary that separates the eastern and western basins. Despite the importance of marine biodiversity in Tunisia, the few studies of Echinodermata fauna in this region data from long ago. In order to update and produce a validated checklist of the echinoderms that occur in northern Tunisia, a study of this phylum was carried out between 2012 and 2016. Forty-five species were inventoried and distributed into the five living Echinodermata classes (Crinoidea, Asteroidea, Ophiuroidea, Echinoidea and Holothuroidea). New occurrences of four species from Tunisian marine waters [Asterina pancerii (Gasco, 1876), Luidia atlantidea (Madsen, 1950), Ophiactis virens (Sars, 1859) and Leptopentacta tergestina (Sars, 1857)], are cited and discussed here for the first time.
Michel Foucault et le christianisme
Authors: Chevallier Philippe
Published: July 2019

Des premiers rites baptismaux à la confession moderne, les références au christianisme sont constantes dans l’œuvre de Michel Foucault. Cette constance s’inscrit dans un questionnement philosophique plus large sur notre actualité : comprendre le rapport que nous avons aujourd’hui à nous-mêmes demande de s’interroger sur les actes de vérité que l’Occident a instaurés depuis les premiers siècles chrétiens. Que faut-il dire et manifester de soi pour être transformé dans son être, pardonné, sauvé, jugé ou guéri ? Ce livre propose une étude critique de l’ensemble des lectures chrétiennes de Foucault, avec une attention particulière portée au cours Du gouvernement des vivants (1979-1980). Ni chronologique ni thématique, le parcours suivi espère retrouver la logique d’un travail à la fois philosophique et historique : quand et comment le christianisme a-t-il été constitué par Foucault en objet de recherche, avec quelles pratiques de lecture et quelles conséquences sur l’interprétation ? Attentif aux mots plus qu’aux choses, le philosophe repère les glissements sémantiques successifs qui annoncent, entre le IIe et le IVe siècle de notre ère, le passage du monde antique à un univers inédit : celui de la perfection impossible et des fidélités difficiles. Loin de l’image facile d’un christianisme ascétique et intransigeant, Foucault définit l’originalité chrétienne comme la reconnaissance et l’institution paradoxale d’un rapport précaire à la vérité.
Synthesis and Characterization of Sulfonated PVDF TiO2-Natural Zeolite Nanocomposites Membrane
Authors: Juliandri  , Nurfadillah Agung , Rukiah  , Nasir Muhamad , Lubis Rubianto A.
Published: July 2019

Fuel cell is one of the future alternative energy sources. Commercial fuel cell membrane currently used is Nafion which has several disadvantages including low stability at high temperature, and low conductivity at low humidity. Therefore, it is necessary to study an alternative membrane for PEMFC. The purpose of this research is to synthesis an alternative fuel cell membrane from sulfonated PVDF doped with nanocomposites of natural zeolite of Cipatujah, West Java, Indonesia and TiO2 nanoparticles. The synthesis of zeolite-TiO2 nanocomposites was performed by sol-gel method using TEOT and zeolite of Cipatujah. The nanocomposites were added to PVDF in DMSO solvent prior to ultrasonification for 1, 2 and 3 hours. The membrane was casted and sulfonated with concentrated sulfuric acid for 4, 6 and 8 hours. The membrane was characterized with FTIR, SEM-EDX, and four-point probe spectroscope. The FTIR analysis shows the existence of sulfone in the polymer. The SEM-EDX results show that the SiO2 from the zeolite and TiO2 have been successfully inserted to the membrane. The conductivity analysis shows that the best membrane conductivity, 0.00389 S/cm was achieved for 6 hours sulfonation and 3 hours ultrasonication.
Synthesis of [Mn(Salen)Cl] Complex Compound and Superoxide Dismutase Activity Determination through Non-Enzymatic Method
Authors: Deawati Yusi , Onggo Djulia , Mulyani Irma , Hastiawan Iwan , Utami Ratna Annisa , Kurnia Dikdik
Published: July 2019

Superoxide dismutase (SOD) is an Mn-containing enzyme that catalyzes the conversion of superoxide (O2•−) into O2and H2O2. To develop a small, non-protein Mn-containing SOD mimic, an [Mn(salen)Cl] complex was synthesized from MnCl2.4H2O and H2salen. The product yielded 75-90% reddish dark brown crystals indicative of the presence of manganese(III) metal ions. An elemental analysis showed that the compound contained: C = 48.36%; H = 4.34%; and N = 7.13%. Infrared spectra of this compound showed peaks at: υ(OH)=3426 (medium), υ(C=N)=1634 (very high), υ(CO)=1292 (high). An ESI-MS analysis (m/z) showed the presence of ionic species from the complex including (salen)(H+) = 269.0 and [Mn(salen)]+= 320.9. Conductivity measurements revealed that the compound is neutral with a molar conductivity of 0.17 mS. Its magnetic moment of 5.2 BM was obtained from a magnetic susceptibility balance measurement, showing that the compound is paramagnetic. The SOD activity of this compound was given by IC50= 2.5 ± 0.3 µM in a non-enzymatic riboflavin photoreductionin vitrotest.
Biosorbent from Chinese Cabbage (Brassica pekinensia L.) for Phenol Contaminated Waste Water Treatment
Authors: Alni Anita , Puspita Kana , Zulfikar Muhammad Ali
Published: July 2019

Water pollution is one of the most common problem in industrialized society owing to increase in manufacturing process. Phenol is one of the water pollutant subsequently released into the waste water in manufacturing papers, paints, textile and plastics. Phenol caused serious health effect if in contact with human hence removal of this substance from waste water is crucial. Using bio sorbent in adsorption of phenol offered a green and cheap method for phenol removal particularly in Bandung area where supply of bio sorbent from agricultural waste are abundant. Biomass from Chinese cabbage (Brassica Pekinensis L.) contains cellulose, hemicellulose and lignin, among other substances that present in smaller amount. Dried stems were blended and filtered through 140 mesh and washed with ethanol to provide biosorbent. Modification was carried out by treatment with epichlorohydrin and HCl. Biosorbents were characterized using FTIR, SEM and BET analysis. Adsorption study was carried out according to the following parameters: pH range 5-9, contact time 10-80 minutes, mass of biosorbent 0.2-1.1 g and initial concentration of phenol is 10-50 mg/L. Upon adsorption, the concentration of phenol was measured by HPLC analysis at the following parameter: eluent methanol: water 7:3 v/v, flowrate 0.8 mL/minute at 273 nm. Untreated biosorbent showed adsorption capacity 0.097 mg/g whilst treatment with epichlorohydrine and HCl showed a decrease in adsorption capacity of 0.057 mg/g and 0.059 mg/g respectively. The optimum adsorption capacity was obtained at pH 8, 20 minutes contact time, 0.8 g mass of biosorbent and initial phenol concentration of 10 mg/L.
The Physicochemical Characteristics of Natural Zeolites Governing the Adsorption of Pb2+ from Aqueous Environment
Authors: Puspitasari Tita , Ilmi Moh. Mualliful , Nurdini Nadya , Mukti Rino R. , Radiman Cynthia L. , Darwis Darmawan , Kadja Grandprix Thomryes Marth
Published: July 2019

The aim of this study is to investigate the effect of natural zeolites characteristics on the adsorption capacity of Pb2+from an aqueous environment. The used natural zeolites were originated from 3 regions in Indonesia. i.e. Bayah, Banten (coded as ZB) and two samples from South Lampung (coded as ZL-1 and ZL-2) and Nanggung, Bogor (ZN). The characteristics of each natural zeolite were evaluated through a series of detailed analysis including XRD, FTIR, XRF, SEM and N2physisorption. It was revealed that ZB, ZL-1 and ZL-2 were dominated by clinoptilolite (HEU) frameworks while the major phase of ZN was mordenite (MOR) type. From XRF data, the three natural zeolites (ZB, ZL-1 and ZN) possessed a comparable Si/Al ratio (ca. 5.5 to 6) whereas ZL-2 had slightly lower Si/Al ratio (ca. 4). We found that, at comparable Si/Al ratio, clinoptilolite frameworks has a higher adsorption capacity of Pb2+compared to that of mordenite due to the compatibility of Pb2+inside the pores of clinoptilolite. Lower Si/Al ratio of natural zeolite tended to show higher adsorption capacity of Pb2+since the net charge of zeolite frameworks became more negative. These two factors, the framework type and the Si/Al ratio, are significant for the adsorption capacity. Another factor, i.e. surface area, had no certain effect on the adsorption capacity in this case.
Numerical Investigation for Convective Heat Transfer of CNT Nano-Fluids over a Stretching Surface
Authors: Ismoen Muhaimin , Mohamad Radiah Bte , Kandasamy R. , Sufahani Suliadi Firdaus , Karim Fazlul , Sabirin Muhamad
Published: July 2019

The performance of carbon nanotube (CNT) nanofluids on convective heat transfer over a stretching sheet was investigated under thermal stratification and magnetic field effects. Water, engine oil and ethylene glycol are used as the base fluids. The governing equations are transformed into a system of coupled nonlinear ordinary differential equations using similarity transformations and solved numerically using the fourth-order Runge–Kutta–Fehlberg in conjunction to shooting method. The CNT nanofluids with an engine oil base fluid shows the highest thermal conductivity in comparison to ethylene glycol and water, respectively. Potential application of the thermal conductivity enhancement of CNT nanofluid is to increase the energy-efficient mechanical systems in heating, cooling and ventilation of the indoor environment.
Study of Dimensional Changes on Alkali Treated Zallaca Fibre Reinforced Unsaturated Polyester Composites under Different Aqueous Environments
Authors: Ariawan Dody , Asfar Muhamad Faisal , Surojo Eko
Published: July 2019

In this research, alkali treated zallaca fibre reinforced with high density polyethylene (HDPE) composites are subjected to water immersion tests in order to study the dimensional changes and flexural properties of composites. Composites were frabricated using compression molding method with zallaca fiber content of 30% vt. Composite specimens were immersed under three different solution included distilled water, sea water and acidic solutions for 2 months at room temperature. The highest dimensional changes was recorded for composite immersed in seawater followed by acidic solution and distilled water. The dimensional changes of Zallaca fibre reinforced HDPE in different solution were found to follow a Fickian behaviour. Alkali treated fiber composites after immersion has lower results both in dimensional changes and its slope than untreated fiber composites in different aquaeous environment. The severe degradations are observed by using Scanning Electron Microscopy (SEM) that showed microcracks growth, and degradation of interfacial region between fiber and matrix. Flexural properties of composites decrease after immersion stage in different values.
Preparation of Polymer Powder Layer for Additive Manufacturing Applications Using Vibration Controlled Brass and Glass Nozzles
Authors: Purwanto Teguh Pudji , Tontowi Alva Edy , Sriwijaya Rachmat
Published: July 2019

Making scaffolds for bone repair is increasingly needed. The material used can be in the form of molten material or powder. For powder materials, Direct Laser Melting technology can be used so that the development of powder material deposition methods is needed. This is because there is a weakness in the deposition method which is assisted by gas pressure. This study uses two types of nozzles, the first type is made of brass with diameters 0.5, 0.8 and 1.0 mm, while the second type is made of glass with a nozzle mouth diameter of 1.0 mm. The powder material used is a polyester resin with a diameter of 5-15 microns in black, and diameter 7-75 microns in red. The nozzle containing the powder is vibrated so that a flow will occur. This flow characteristic will affect the form of deposition that occurs. Powder flow on the nozzle made of brass and glass shows a similarity to the 1.0 mm nozzle diameter. For nozzle diameter smaller than 1.0 mm, the effect of grain size affects flowability. The smoothness of the surface affects the nature of the powder flow. On a smooth glass surface, the friction force between the powder and the wall of the nozzle is small, so that for the small powder size the flow cannot be controlled. The best deposition form is obtained at a frequency of 950 Hz with a brass nozzle and 1.0 mm diameter.
Predicting Surface Hardness of Commercially Pure Titanium under Ion Implantation Process
Authors: Darmawan Agung Setyo , Siswanto Waluyo Adi , Febriantoko Bambang Waluyo , Hamid Abdul , Sujitno Tjipto
Published: July 2019

One of the surface treatments to improve the hardness of the surface is by ion implantation process. This paper presents an equation to predict the surface hardness with the variable of the process time in ion implantation surface treatment. The hardness of three surfaces data were collected experimentally from various process times, i.e. 140 minutes, 280 minutes and 560 minutes. Lagrange polynomial interpolation was then used to generate quadratic mathematical formula of the surface hardness based on experimental data. The verification results show that the proposed equation accurately predict the surface hardness of commercially pure (cp) titanium under ion implantation process with the error less than 0.5 %. This equation can be used to set the appropriate treatment process time to achieve the expected surface hardness without costly trial experimental settings.
Análise e implementação de banco de dados NOSQL para a plataforma magento
Authors: Lube dos Santos Otávio , Colli Spalenza Denis
Published: July 2019

The increase of the adhesion in digital platforms cause a great amount of data is generated in later systems in the internet. E-commerce as well as other modalities have come up against the challenges inherent in today's data management needs, such as handling large volumes of data, horizontal scalability, and supporting flexible data storage models. Focusing on these challenges, this article proposes an analysis for the use of a NoSQLdatabase system on an e-commerce platform Magento®, a leading e-commerce-free e-commerce system, and measure the gains and losses in using the approach
An improved estimate for the δ13C and δ18O signatures of carbon monoxide produced from atmospheric oxidation of volatile organic compounds
Authors: Vimont Isaac J. , Turnbull Jocelyn C. , Petrenko Vasilii V. , Place Philip F. , Sweeney Colm , Miles Natasha , Richardson Scott , Vaughn Bruce H. , White James W. C.
Published: July 2019

Abstract. Atmospheric carbon monoxide (CO) is a key player in global atmospheric
chemistry and a regulated pollutant in urban areas. Oxidation of volatile
organic compounds (VOCs) is an important component of the global CO budget
and has also been hypothesized to contribute substantially to the summertime
urban CO budget. In principle, stable isotopic analysis of CO could
constrain the magnitude of this source. However, the isotopic signature of
VOC-produced CO has not been well quantified, especially for the oxygen
isotopes. We performed measurements of CO stable isotopes on air samples
from two sites around Indianapolis, US, over three summers to investigate
the isotopic signature of VOC-produced CO. One of the sites is located
upwind of the city, allowing us to quantitatively remove the background air
signal and isolate the urban CO enhancements. as well as the isotopic
signature of these enhancements. In addition, we use measurements of Δ14CO2 in combination with the CO:CO2 emission ratio from fossil fuels to constrain the fossil-fuel-derived CO and thereby isolate the
VOC-derived component of the CO enhancement. Combining these measurements
and analyses, we are able to determine the carbon and oxygen isotopic
signatures of CO derived from VOC oxidation as -32.8‰±0.5‰ and 3.6 ‰±1.2 ‰, respectively. Additionally, we analyzed CO stable
isotopes for 1 year at Beech Island, South Carolina, US, a site thought
to have large VOC-derived contributions to the summertime CO budget. The
Beech Island results are consistent with isotopic signatures of VOC-derived
CO determined from the Indianapolis data. This study represents the first
direct determination of the isotopic signatures of VOC-derived CO and will
allow for improved use of isotopes in constraining the global and regional
CO budgets.
Conceptual model of diurnal cycle of stratiform low-level clouds over southern West Africa
Authors: Lohou Fabienne , Kalthoff Norbert , Adler Bianca , Babić Karmen , Dione Cheikh , Lothon Marie , Pedruzo-Bagazgoitia Xabier , Zouzoua Maurin
Published: July 2019

Abstract. DACCIWA (Dynamics Aerosol Chemistry Cloud Interactions in West Africa) project and the associated ground-based field experiment, which took place during the summer 2016, provided a comprehensive dataset on the low-level stratiform clouds (LLC) which develop almost every night over southern West Africa. The LLC, inaccurately represented in the climate and weather forecasts, form in the monsoon flow during the night and break up the day after, affecting considerably the radiation budget. The DACCIWA field experiment dataset supports several published studies which give an overview of the measurements during the campaign, analyze the dynamical features in which the LLC develop, and quantify the processes involved in the LLC formation. Based on the main results of these studies and new analyses, we propose in this paper a conceptual model of the diurnal cycle of the LLC over southern West Africa. Four main phases compose the diurnal cycle of the LLC. The stable and the jet phases are the two steps during which the relative humidity increases, due to the cooling of the air, until the air is saturated and the LLC form. The horizontal advection of cold air from the Guinean coast by the maritime inflow and the nocturnal low level jet (NLLJ) represents 50 % of the total cooling. The remaining half is mainly due to divergence of net radiation and turbulence flux. The third step of the LLC diurnal cycle is the stratus phase which starts during the night and lasts until the onset of buoyancy driven turbulence on the following day. During the stratus phase, interactions between the LLC and NLLJ imply a modification of the wind speed vertical profile in the cloud layer, and a mixing of the subcloud layer by shear-driven turbulence below the NLLJ core. The breakup of the LLC occurs during the convective phase and can follow three different scenarios which depend on the intensity of the shear-driven turbulence observed during the night. The breakup time has a considerable impact on the energy balance of the Earth's surface and, consequently, on the depth of the convective boundary layer, which could vary by a factor of two from day-to-day.