bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Marine Photovoltaic Power Forecasting Based on Wavelet Transform and Echo State Network
Authors: Xinhui Du , Shuai Wang , Juan Zhang 
Published: September 2017

Abstract
With the rapid development of photovoltaic power generation technology, photovoltaic power generation system has gradually become an important component of the integrated energy system of marine. High precision short-term photovoltaic power generation forecasting is becoming one of the key technologies in ship energy saving and ship energy efficiency improving. Aiming at the characteristics of marine photovoltaic power generation system, we designed a highprecision power forecasting model (WT+ESN) for marine photovoltaic power generation system with anti-marine environmental interference. In this model, the information mining of the photovoltaic system in marine environment is carried out based on wavelet theory, then the forecasting model basing on echo state network is construct ed. Lastly, three kinds of error metrics are compared with the three traditional models by Matlab, the result shows that the model has high forecasting accuracy and strong robustness to marine environmental factors, which is of great significance to save fuel for ships, improve the energy utilization rate and assist the power dispatching and fuel dispatching of the marine power generation system.
Inversion of Side Scan Sonar Motion and Posture in Seabed Geomorphology
Authors: Tao Weiliang , Liu Yan , Hu Wenbin 
Published: September 2017

Abstract
Side scan sonar measurement platform, affected by underwater environment and its own motion precision, inevitably has posture and motion disturbance, which greatly affects accuracy of geomorphic image formation. It is difficult to sensitively and accurately capture these underwater disturbances by relying on auxiliary navigation devices. In this paper, we propose a method to invert motion and posture information of the measurement platform by using the matching relation between the strip images. The inversion algorithm is the key link in the image mosaic frame of side scan sonar, and the acquired motion posture information can effectively improve seabed topography and plotting accuracy and stability. In this paper, we first analyze influence of platform motion and posture on side scan sonar mapping, and establish the correlation model between motion, posture information and strip image matching information. Then, based on the model, a reverse neural network is established. Based on input, output of neural network, design of and test data set, a motion posture inversion mechanism based on strip image matching information is established. Accuracy and validity of the algorithm are verified by the experimental results.
Visualization Investigation on the Marine Data with Multivariate Statistical Analysis Methods
Authors: Yajie Li , Zhengdong Lv , Maonan Wang 
Published: September 2017

Abstract
Marine information is an important way for us to know and study more about the ocean. Marine data makes the basic of marine information. Because of the huge quantity and diversity of marine data, and at the same time marine data is polyatomic variable, we start with statistical analysis methods to search for the regularity of the marine data. On one hand, we get the aggregate variation functions of the marine data by factor analyzing in aspect of the spatiality. Then we visually describe the marine status of the studied sea area with pre variogram function and post variogram function. On the other hand, we used cluster analysis method to get the verifying rule in time and make visible graphs of the marine data. In this way, we can also supply with the suggestions in classifying the sea seawater quality. The data processing result shows that the suggested methods in this article are both operable and effective. At the same time some reasonable suggestions are given in the article.
Research on he Classification of Life-Cycle Safety Monitoring Levels of Subsea Tunnels
Authors: Lu Junfu , Xue Xiaoqiang 
Published: September 2017

Abstract
As a traffic engineering project across straits or gulfs, subsea tunnel is one of the oceaneering with great construction difficulties, and the key to the success of subsea tunnel engineering lies in timely and accurate assessment of the structure safety of subsea tunnel engineering construction and life-cycle. Xiang’an Xiamen subsea tunnel is China’s first subsea tunnel which crosses complex formation conditions, engineering accidents such as collapse, sudden inflow of water or mud might occur during tunnel construction and operation. Therefore, the concept of subsea tunnel life-cycle monitoring is proposed aiming at the particularity of subsea tunnels. The variation forms of subsea tunnel mainly include large deformation, collapse, primary support cracking, water leakage, water pressure increase, steel arch corrosion, concrete corrosion, longitudinal differential settlement, etc., and classification of the life-cycle safety monitoring levels of the subsea tunnel is conducted based on risk assessment theory and risk level management benchmark to determine the possible variation forms in the monitoring level segments. The research results will provide reference for the subsea tunnel life-cycle monitoring, disaster warning as well as risk management under construction or to be built at home and abroad.
Fatigue Life Prediction of Umbilicals Considering Non-Linear Stress
Authors: Qingzhen Lu , Yuanchao Yin , Zhixun Yang , Jinlong Chen , Jun Yan , Qianjin Yue 
Published: September 2017

Abstract
The fatigue problem induced by wave loads and floater movements of dynamic umbilicals in deepwater is studied. The prediction method of the fatigue life is investigated by considering no-linear local stress due to contact and friction between components of the umbilical. A case study of a dynamic umbilical for 1500 meters depth in South China Sea was presented. The results showed that the more accurate result of the fatigue life was calculated by considering non-linear local stress. The fatigue life by considering local stress with the no-slip assumption was conservative. An obviously longer fatigue life was obtained by considering local stress with the full-slip assumption.
Study on Green Water of Tumblehome Hull Using Dam-Break Flow and Ranse Models
Authors: Sun Shuzheng , Du Wenlei , Li Hui 
Published: September 2017

Abstract
The tumblehome hull adopts some novelty designs such as low-tumblehome freeboard and wave-piercing bow. The new form design makes the ship have many special hydrodynamic performances. Especially the green water of tumblehome hull is different from that of hulls with flare free board. Green water is a strong nonlinear phenomenon of ship-wave interaction, the variation of free surface of liquid is complicated, and there are still some difficulties to solve green water problems well with numerical simulation method. In this paper firstly the motion responses of the tumblehome hull was calculated based on 3D potential theory, and then the dam-break flow model was used to calculate green water height and pressure distribution. According to the result of numerical simulation, some typical working conditions are chosen for 3D CFD simulation using RANS method. The results of numerical simulation methods are compared with the experimental results measured in towing tank. The influence of different ship form parameters and wave parameters to the green water of tumblehome hull is analyzed, and some regularities of green water on tumblehome hull in regular waves are summarized.
Development of Evaluation System of Coastline Resource in Dafeng
Authors: Ming Chen , Changxin Xu , Hongquan Chen 
Published: September 2017

Abstract
Coastline is one type of valuable non-renewable resources. From the perspective of economic theory, it can gather population, promote traffic construction, and then improve the level of international trade. The research object of this paper is the coastline resource in Dafeng area. Firstly, we have a brief summary of the existing coastline evaluation literature, then introduce the location and natural attributes of the coastline resources in Dafeng. Following that, the Analytic Hierarchy Process (AHP) model is used to build the economic evaluation index system based on the characteristics of coastline in Dafeng. Specially, this index system consists of 6 factors, and a total of 41 detailed indicators were chosen including water depth, GDP, etc. On this basis, we use the assignment method to quantify the weight of each index, and calculate the comprehensive score of coastline resource by using the YAAHP software. The final conclusion is as follows: The total score of economic evaluation of coastline resource in Dafeng is 0.87. Therefore, the coastline resource in Dafeng will eventually be constructed a unique coastal economic zone, where the implemented port industrial projects will include shipbuilding, logistics, mechanical processing etc.
Analysis of Deterioration Phenomena in a Koran by Nineteenth Century Ottoman Calligrapher Mehmed Şevki
Authors: Kural Özgörüş Nurçin , Ünlü Cüneyt H. , Grupče Orhideja , Bakan Feray , Sezen Meltem 
Published: September 2017

AbstractA Koran written by Mehmed Şevki is the subject of this comparative analysis. This manuscript displayed an extensive degree of deterioration in 28 of the folios, while the rest of the manuscript is in considerably better condition. The aforementioned deteriorated sections of the book proved to be brittle and much darker in colour compared to the rest of this manuscript. The possible cause for this condition was ascertained using complementary techniques including the utilisation of micro-chemical (spot) tests, SEM-EDS, FTIR and Raman spectroscopy. The Micro-chemical Herzberg test indicated rag fibres in the paper used for the Koran, while the Raspail test #1 revealed rosin only in the sizing material of the deteriorated folios. SEM-EDS identified the presence of iron in all layers of the deteriorated folios but not in the stable folios. These results led subsequently to the conclusion that the deterioration of the folios was in fact related to the acid-catalysed hydrolysis due mainly to the presence of rosin and oxidation processes promoted by iron ions. This finding was also supported by FTIR analysis. The analyses indicated that different sizing materials had been used in the papermaking process of the two types of folios. In addition, Raman, EDS and HPLC techniques were also applied for the characterization of the inks and dyes. The results showed that inks and dyes were consistent throughout the entire text, thus suggesting calligrapher Mehmed Şevki and illuminator Hüseyin processed the book continually. It is plausible that calligrapher Mehmed Şevki changed his paper supply during the writing process which is why today we see a variety of differences in the condition of the papers.
Heterogeneous catalysts for gas-phase conversion of ethylene to higher olefins
Authors: Ghashghaee Mohammad 
Published: September 2017

Abstract
The reduced availability of propylene and C4 products from steam crackers continues to provoke on-purpose technologies for light olefins such that almost 30% of propylene in 2025 is predicted to be supplied from unconventional sources. Furthermore, the recent discoveries of natural gas reservoirs have urged interest in the conversion of surplus alkanes and alkenes, especially ethane and ethylene. The direct conversion of ethylene to propylene or a combination of value-added chemicals, including butylenes and oligomers in the range of gasoline and diesel fuel, provides the capability of responding to the fluctuations in the balance between supply and demand of the main petrochemicals. A comprehensive review of heterogeneous catalysts for the gas-phase conversion pathways is presented here in terms of catalytic performances (ethylene conversion and product selectivities), productivities, lifetimes, active sites, physicochemical properties, mechanisms, influence of operating conditions, deactivation and some unresolved/less-advanced aspects of the field. The addressed catalysts cover both zeolitic materials and transition metals, such as tungsten, molybdenum, rhenium and nickel. Efforts in both experimental and theoretical studies are taken into account. Aside from the potential fields of progress, the review reveals very promising performances for the emerging technologies to produce propylene, a mixture of propylene and butenes, or a liquid fuel from ethylene.
Une autre approche structurale est possible: Sens, expérience, analyse
Authors: Tore Gian Maria 
Published: September 2017

Abstract
Greimassian approach to texts represents undoubtedly the most incisive cases of structural analysis: textualistic (cf. the principle of the “closure” and the “immanence” of the object) and systemic (cf. the signifying “wholes”, grasped according to a semiotics of “levels” or “hierarchies”). It is an utterly synchronic, and even static approach (transformations, “doings” conceived from a reductionist perspective as a simple passage from one state to another). It is an epistemology of transparency (the question of reflexivity is evacuated and meaning never seems to cause any problem, with no account of the misunderstanding elicited from the text, interpretation thus being always univocal and victorious). The aim of this article is twofold: first, to call and comment on such principles as a coherent whole; then, to show how we may overthrow them, and nevertheless secure a structuralistic approach remaining faithful to the object of study. We may come up with a lucid and rigorous analysis à la Greimas, while fully adhering to a theory that is critical of the Greimassian approach: analysis that are dynamicists, reflexive and even “anarchic” (non-hierarchic, not attached to a priori established and thus unique orders); analyses assigned to an object according the way the object itself is explicitly constructed by the analyst (other constructions are equally conceivable); analysis assigned thus to an irreducible multiplicity of the object – according the way the object itself is put in value (in its dimensions, phases and aspects).
‚Make America Great Again‘? Die strategische Handlungs(un)fähigkeit der USA vom Ende des Kalten Kriegs bis zu Präsident Donald Trump
Authors: Groitl Gerlinde 
Published: September 2017

Kurzfassung:
Den USA gelang es über viele Jahrzehnte besser als anderen Staaten, strategisch zu handeln und ihre Macht zielgerichtet und zielführend im Dienste ihrer nationalen Interessen einzusetzen. Dazu gehörten die Sicherung der eigenen Vormachtstellung und die Gestaltung einer liberalen internationalen Ordnung. Nach dem Kalten Krieg änderte sich das Bild, weil die USA ihren strategischen Kompass verloren, die politische Polarisierung zunahm und der gesellschaftliche Rückhalt sank. Die Supermacht leidet schon länger unter Einbußen in ihrer strategischen Handlungsfähigkeit. Doch Donald Trump treibt es auf die Spitze: Seine Außenpolitik ist die Fortsetzung des Wahlkampfs mit anderen Mitteln.
Die künftige internationale Einbettung der Ukraine: Sechs Sicherheitspolitische Szenarien für einen osteuropäischen Schlüsselstaat
Authors: Umland Andreas 
Published: September 2017

Kurzfassung:
Die größte strategische Herausforderung für die Herausbildung eines stabilen und geeinten ukrainischen Nationalstaats und das größte strukturelle Hindernis für eine erfolgreiche wirtschaftliche Entwicklung der Ukraine bleiben weiterhin die russischen Maßnahmen der hybriden Kriegsführung. Obwohl auch weitere ukrainische Reformfortschritte wichtig sind, wird westliches Engagement entscheidend dafür sein, die Effekte des fortdauernden russischen Hybridkrieges gegen die Ukraine einzuschränken. Vor diesem Hintergrund beschreibt der Aufsatz sechs alternative Entwicklungsszenarien der kommenden Jahre.
Integrationsdiskurs und migrantische Biographie
Authors: Kontos Maria 
Published: September 2017

ZusammenfassungDer Artikel lehnt sich an ein relationales Konzept von Diskurs an, das die Interpretationsleistung des rezipierenden Subjekts als konstitutives Element des Diskurses versteht, und überprüft die Idee der Artikulation von Diskurs und Subjekt am empirischen Material und im Kontext von biographietheoretischen Überlegungen. Der Fokus richtet sich auf die Bedeutung der Prozessstrukturen des Lebensablaufs und insbesondere der Prozessstruktur der Wandlung zum Verständnis von Artikulation, De-Artikulation und Re-Artikulation von Diskurs und Subjekt. Am Fallbeispiel eines freigestellten migrantischen Betriebsrates wird die Erfahrung und Verarbeitung der neueren öffentlichen Integrationsdebatte 2009-2010 analysiert; ebenso die Positionierung des Subjekts gegenüber dem Integrationsdiskurs und dem gesellschaftlichen Ganzen als biographische und normative Arbeit, die den Prozess von Artikulation von Diskurs und Subjekt prägt
Ergonomic Consideration of the Effect of Flour Dust on Peak Expiratory Flow Rate of Bakers in Abeokuta, Ogun State
Authors: Musa Adekunle Ibrahim , Orelaja Oluseyi A. 
Published: September 2017

Abstract
Flour dusts are one of the most harmful chemicals in the bakery industries which could lead to serious heart and lung diseases. This study investigated the effect of flour dust on Peak Expiratory Flow Rate of male bakers in Abeokuta, Ogun State, Nigeria with the relationship to the anthropometrical parameters. A total of One hundred Eighty (180) male participants were investigated, where ninety (90) participants were bakers and ninety (90) individuals as control group. The Peak expiratory flow rate (PEFR) and anthropometrical parameters of the participant were measured using mini-Wright peak flow meter (PFM 20, OMRON) and Detecto PD300MDHR (Cardinal Scale manufacturing company, USA) column scale with digital height rod was used to measure body mass [kg] and height (cm) respectively. The PEFR and anthropometrical parameters of the bakers and control groups were analysed using descriptive statistics and T-test with SPSS. The results showed that lower PEFR, 182.67 ± 16.34 L/min existed in bakers compared to 287.67 ± 17.02 L/min in the control study. The result also showed that a significant correlation exist between body mass, height and age (P < 0.01), PEFR, height (P < 0.05) and years of exposure (P < 0.01) of the bakers respectively. Furthermore, the results also showed that workers in the dusting and mixing of flour are at a risk of developing related pulmonary function impairment such as asthma. The study concluded that there is need to develop an effective intervention strategy, treatment seeking behaviour through awareness programs to prevent lung impairment diseases among the bakery workers.
Approach to Assessing the Preparedness of Hospitals to Power Outages
Authors: Brehovská Lenka , Nešporová Veronika , Řehák David 
Published: September 2017

Abstract
Within the secondary impacts of electricity blackouts, it is necessary to pay attention to facilities providing medical care for the population, namely the hospitals. Hospitals represent a key position in the provision of health care also in times of crisis. These facilities must provide constant care; it is therefore essential that the preparedness of such facilities is kept at a high level. The basic aim of this article is to analyse the preparedness of hospitals to power outages (power failures, blackouts) within a pilot study. On that basis, a SWOT analysis is used to determine strengths and weaknesses of the system of preparedness of hospitals to power outages and solutions for better security of hospitals are defined. The sample investigated consists of four hospitals founded by the Regional Authority (hospitals Nos. 1-4) and one hospital founded by the Ministry of Health of the Czech Republic (hospital No. 5). The results of the study shows that most weaknesses of the preparedness of hospitals are represented by inadequately addressed reserves of fuel for the main backup power supply, poor knowledge of employees who are insufficiently retrained, and old backup power supplies (even 35 years in some cases).
Population Dynamics of the Roe Deer, Capreolus Capreolus, and the Red Deer, Cervus Elaphus (Artiodactyla, Cervidae), in the Mountain Crimea
Authors: Smagol V. M. , Yarish V. L. 
Published: September 2017

Abstract
Results of the investigations of changes in the number of hoof-animals in the Mountain Crimea in the period from 1980 to 2014 are presented in the article. It is found that the period of the animal numbers change is 7.5 years for red deer and 4.6 years for roe deer. The shortening of the period of the animal numbers change as compared with other populations is a defence mechanism under conditions of a continuous anthropogenic pressure.
Ginkgetin inhibits proliferation of human leukemia cells via the TNF-α signaling pathway
Authors: Pan Ling-Ling , Wu Wen-Jun , Zheng Gao-Feng , Han Xiao-Yan , He Jing-Song , Cai Zhen 
Published: September 2017

Abstract
Ginkgetin is known to be an anticancer agent in many studies. However, its effectiveness in treating chronic lymphoblastic leukemia (CLL) remains unknown. The present study aimed to evaluate the effects of ginkgetin on the growth of the K562 cell line. The MTT assay was employed to examine the proliferation of K562, and a terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling (TUNEL) staining was conducted to detect the apoptotic rates. Furthermore, changes of tumor necrosis factor-α (TNF-α) were detected by Western blot analysis. Ginkgetin inhibited the proliferation of K562 cells in a dose- and time-dependent manner. Concentrations of ginkgetin required to induce 50% death of K562 at 24, 48 and 72 h were 38.9, 31.3 and 19.2 μM, respectively. Moreover, treatment of ginkgetin increased K562 apoptosis in vitro along with increased levels of TNF-α. Interestingly, anti-TNF-α antibody prevented ginkgetin-induced K562 cell apoptosis and growth inhibition via deactivation of caspase-8, caspase-9 and caspase-3. Concomitantly, downregulation of TNF-α by etanercept in vivo attenuated ginkgetin-induced inhibitory effects on the tumor growth in an xenograft mouse model. Our results indicate that ginkgetin effectively inhibits K562 cell proliferation, and TNF-α plays a key role in ginkgetin-induced cell apoptosis.
GC-MS characterization of n-hexane soluble fraction from dandelion (Taraxacum officinale Weber ex F.H. Wigg.) aerial parts and its antioxidant and antimicrobial properties
Authors: Ivanov Ivan , Petkova Nadezhda , Tumbarski Julian , Dincheva Ivayla , Badjakov Ilian , Denev Panteley , Pavlov Atanas 
Published: September 2017

Abstract
A comparative investigation of n-hexane soluble compounds from aerial parts of dandelion (Taraxacum officinale Weber ex F.H. Wigg.) collected during different vegetative stages was carried out. The GC-MS analysis of the n-hexane (unpolar) fraction showed the presence of 30 biologically active compounds. Phytol [14.7% of total ion current (TIC)], lupeol (14.5% of TIC), taraxasteryl acetate (11.4% of TIC), β-sitosterol (10.3% of TIC), α-amyrin (9.0% of TIC), β-amyrin (8.3% of TIC), and cycloartenol acetate (5.8% of TIC) were identified as the major components in n-hexane fraction. The unpolar fraction exhibited promising antioxidant activity – 46.7 mmol Trolox equivalents/g extract (determined by 1,1-diphenyl-2-picrylhydrazyl method). This fraction demonstrated insignificant antimicrobial activity and can be used in cosmetic and pharmaceutical industries.