bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Data Analysis and Application on the Safety Production of Port Enterprises Based on the AHP-Fuzzy Comprehensive Evaluation Method
Authors: Meng Guodong , Wang Yukun , Hu Yanhua , Zhao Hong
Published: May 2021

The production process of port enterprises is complex, and the operation contents are diversified and dynamic. Thus, the factors affecting the safety production risk are numerous and complex. To better grasp the risk state of the safety production of the port enterprises, based on the requirements of relevant laws and regulations and the actual situation of safe production of port enterprises, in this study, the diversified safety production data of port enterprises was collected and analyzed, the three-level index system of safety production data for port enterprises was constructed, the evaluation model of safe production state for port enterprises based on AHP-fuzzy comprehensive evaluation was established, and the practical application was carried out in a large port enterprise. The evaluation results were highly consistent with the actual situation of safe production of port enterprises. This evaluation method can be used to make full use of the existing data sources of safety production of port enterprises to discover the prominent risks affecting safety production and control them, and effectively improve the level of safety production of port enterprises.
Research on High-rise Building Fire Early Warning System Based on Multidimensional Data Fusion
Authors: Kong Shengli , Fang Xinmei , Yang Pengfei , Yang Zhen , Wang Wei
Published: May 2021

With the rapid development of urban construction and the increasing number of high-rise buildings, many problems have arisen, one of which is fire. High-rise building fires are developing rapidly, and it is difficult to extinguish them, which causes great losses and seriously threatens people’s safety in production and life. Early warning of high-rise building fire is an important means to prevent fire. In this paper, aiming at high-rise building fires, the causes of high-rise building fires in 2019 are analyzed statistically, and the causes of high-rise building fires are summarized. An intelligent early warning system of high-rise building fire based on multi-dimensional data fusion is proposed. Based on the actual forecast data, the early warning system based on multi-dimensional data fusion is analyzed through Matlab simulation, thus verifying the feasibility and reliability of the established fire early warning system. The research results have certain guiding significance for high-rise building fire warning.
Study on Sustainable Development Strategy of Indigenous Tribal Tourism
Authors: Chang Hsiao-Ming , Lin Ching-Hui , Chuang Ying-Wan
Published: May 2021

In recent years, the tribal tourism activities with the theme of aboriginal culture and ecology have been loved by the people of Taiwan, so the issue of sustainable development has been attached great importance. This paper analyzes the empirical research literature on the development of aboriginal cultural tourism and eco-tourism by means of literature review, and summarizes the framework of sustainable development of tribal tourism. After analysis, this study are finds that: 1. The government plays an important role in the process of sustainable development of tribes. 2. The positive impact of tourism development on the economy, society and environment is higher than the negative impact. Based on the above findings, this study puts forward specific suggestions for the sustainable development of tribal tourism in the future.
Particle Tracking Random Simulation of Pollutant Migration and Diffusion
Authors: Du Zhehua , Lin Xin
Published: May 2021

A two-step Lagrangian particle tracing method was used to simulate the particle movement in convective diffusion. Firstly, the flow field distribution was given by finite difference method. Secondly convective diffusion was simulated by particle tracing method. Jet current through centre slit in the static flow and turbulent flow as well as the side discharge of pollutant were simulated as case study. In this paper, finite difference method is used to solve fluid velocity field distribution, and particle tracking method is used to solve convection-diffusion equation. The result shows that the data produced by particle tracing method is reasonable and the method is stable. This method can be applied to the calculation of the convective diffusion of pollutant and spread to other problems.
Design and development of feasibility analysis software for live working
Authors: Guo Hao , Wang Zhigang , Mao Dun , Qiao Mingming , Zhen Zhaohui
Published: May 2021

The work load of the traditional calculation method of safety distance check and circuit mechanics calculation is huge inefficiency, this paper presents a set of software of safety analysis and mechanics calculation for live working, the electrical and mechanical parameters of live working transmission lines are obtained, the feasibility of operation is analyzed, working tools are reasonably selected to improve the safety and efficiency of live working, it is of great significance to reduce the emergency response time, the electric safety distance check and the line mechanics calculation methods.
The spatiotemporal migration process of Cd content and the theory developed
Authors: Yang Dongfang , Zeng Ziyuan , Zhang Longlei , Wang Qi , Li Haixia
Published: May 2021

According to the survey data of Jiaozhou Bay water body from 1984 to 1988, this paper analyzed and explored the data of Cd content each year, and studied the sources, water quality, distribution and migration conditions of Cd content in the waters of Jiaozhou Bay from the perspectives of volume, horizontal distribution, vertical distribution, seasonal distribution, regional distribution, structural distribution and tendency distribution. On the time scale, there are five migration processes of Cd content in the waters of Jiaozhou Bay. The author proposed five material migration theories to present the dynamic migration process of material in the water body. These rules, processes and theories not only provide solid theoretical bases for the migration of Cd content in the waters, but also provide enlightenment for the study of the migration of other substances in water bodies.
Analysis on the Characteristics and Cause of a Compound Pollution Process in Changsha in 2017
Authors: Yan Hu , Hongwu Liu , Huanqian Liu , Zhonghai Yin
Published: May 2021

Using the conventional meteorological observations, the air Air quality monitoring data, the L-band wind-profiling radar data, the NECP reanalysis data, and the simulation results of the HYSPLIT4 model, the compound pollution process from November 2 to 5, 2017 in Changsha is comprehensively analyzed in this study, including the sources and transport paths of pollutions, the Meteorological conditions and atmospheric boundary layer characteristics. The results showed that the process of air pollution in Changsha is a compound pollution process with high concentration of O3 and fine PM2.5 coexisting. It reached serious pollution from 08:00 to 11 : 00 on 4, PM2.5 was 269.3 ug·m−3 at 09:00 on 4 November. The characteristics of the two phases of this pollution process were clearly different. The first phase was mainly result of accumulation of local pollutants, and the second one was mainly result of outside resource. The maximum wind were light breezein on this pollution process, gentle breeze mainly occurred in the second stage of pollution, and the maximum wind velocity was 4.4m/s. It appearred multi-layer inversion usually, temperature stratification was stabled, and the inversion layer thickness reached the maximum value 909m at 20:00 on 3 November. The boundary layer convergenced and ascented movement, horizontal transport, vertical wind field distribution and atmospheric layer provided the favorable conditions for the air pollution process. The results showed that short-range transport of pollutants is the maily reason based on the HYSPLIT4 model, the northeast airflow was dominant at 100-1000m height. The vary of wind profile data and CO and SO2 emission ratio showed that the different pollution characteristics of two phases, the maximum ratio was more than 100. It has an important indicator for weather forecast in Changsha.
Identification of Urban Rainstorm Waterlogging Based on Multi-source Information Fusion：A Case Study in Futian District, Shenzhen
Authors: Zhang Zongjia , Meng Fanyu , Zeng Yiping , Liu Junguo , Yuan Diping , Fong Simon , Yang Lili
Published: May 2021

Flood disasters have become one of the most threatening natural disasters in the world, in which waterlogging is the most common form in the context of highly urbanized megacities. The formation of flood disaster is related to many factors and involves information from multiple sources, making it difficult be predicted. This paper integrates multi-source information data, classifies the study area into different categories according to hydrological analysis results, and combines hydrodynamic theory and ArcGIS to get the quantitative prediction of the range and depth of waterlogging under different rainfall inputs. The evaluation results provide the government with accurate and timely information of waterlogging risks and locations in order to improve promptness of emergency management such as evacuation and managing traffics.
Implications of Pollinator Biodiversity Decline for Food Security, Economy, and Pollinator Conservation Policies
Authors: Vasiliev Denis
Published: May 2021

Pollinator decline is one of the most significant ecological problems of the 21stcentury. This decline threatens human food security and global economy. In order to address this problem governments across Europe and the USA have introduced national pollinator conservation strategies. These strategies, however, significantly differ in approaches to conservation. The differences at least in part stem from lack of consensus in the literature on whether pollinator biodiversity or abundance of a few common species determines crop pollination. Critical evaluation of empirical evidence available to date outlined in this paper suggests that pollinator biodiversity rather than abundance of dominant species determine quality, magnitude and resilience of pollination ecosystem services to agriculture. In order to maintain pollinator biodiversity conservation strategies and initiatives should focus on enhancing habitat quality, complementarity and connectivity, rather than solely on increasing floral resource abundance and diversity within farmland fields. Conservation strategies currently underway need to be improved to address all three factors through landscape scale interventions. Countries that intend to design and introduce pollinator conservation strategies should take best practices from several existing strategies rather than choosing a single strategy as an example.
Аnalysis of the Effects of the Implementation of the Sustainable Urban Development Strategy
Authors: Nedeva Keranka
Published: May 2021

The study traces the results of the implementation of the Strategy for Sustainable Urban Development, as well as the integrated plans for urban regeneration and development and possible positive results that coincide with the requirements for the organization and construction of a Smart city. A sustainable city must allow long-term development without compromise for future generations. The aim of the study is to draw attention to taking adequate measures in the development of such urban development plans that contain elements of Smart city. Methods for document analysis, comparative analysis of plans and requirements for building a smart city were used. The concept of a sustainable city requires balancing goals for social, economic, environmental and managerial factors.
Bohdan Kravtsiv as a translator of Rainer Maria Rilke's poetry
Authors: Paslawska Alla
Published: May 2021

The paper presents a modified three-level model of possible relations between different cultures proposed by W. Welsh. There have been outlined multicultural, intercultural and transcultural aspects of such relations. The model is exemplified by the translations of Bohdan Kravtsiv. Life circumstances forced Kravtsiv to leave Ukraine and spend his life abroad. He had to work on his translations in different countries and cultures. Just like other cultures influenced his way of thinking, life experience and poetic creativity, due to his political, social, poetic, and translation activities, he himself influenced the cultures he was immersed in and where he was involved in the creative activity. Remoteness from Ukraine did not make the poet and translator break off his relations with his home country. In the Diaspora he did his best to help Ukrainians, replenish the poetic translations of the Ukrainian literature, retain memories of the repressed poets, enrich Ukrainian cultural heritage (transcultural aspect). The language personality of Bohdan Kravtsiv as a translator is considered in terms of his translations of Rainer Maria Rilke's poetry. The structure of the language personality of the translator encompasses verbal, cognitive and pragmatic-motivational levels. The paper focuses on the analysis of Kravtsiv’s translations of Rilke's poems into Ukrainian. It has revealed Kravtsiv’s brilliant mastery of the poetic word. The translations of Rilke's poems performed by Kravtsiv testify to the translator's efforts to remain faithful to the form and content of the original. In spite of the different morphological and phonetic structures of German and Ukrainian, he succeeded in most cases. The translator’s individual style is marked by concise and euphonious translations, multiple new coinages and in-depth knowledge of the original works.
Domestication strategy in rendering lexical and phraseological units in American university discourse: Stylistic aspects
Authors: Masanovets Viktoriia
Published: May 2021

The article aims at disclosing stylistic aspects of the domestication strategy representation and establishing correlations between domestication translation strategy and ways of English-Ukrainian translation of lexical and phraseological units in American university discourse based on the novel The Secret History by Donna Tartt and its Ukrainian translation by Bohdan Stasiuk. A comparative, stylistic, contextual and translation analyses of the source and target texts were employed. The research argues that in order to minimise the number of foreign elements in the target text, to make it more comprehensible for the reader the notion of domestication is applied in the translation. The study singles out six groups of lexical and phraseological units in the ST domesticated in the Ukrainian translation (idioms, phrasal verbs, colloquial vocabulary (slang and vulgarisms), interjections, proper nouns and stylistically neutral vocabulary) and means of their domestication in the TT (translation by means of stylistic equivalents, stylistic translation transformations of expressivation and logisation). According to the obtained results, the prevailing ways of representation of domestication strategy in the Ukrainian translation of American university discourse are translation by means of stylistic equivalents predominantly used for reproducing ST idioms, phrasal verbs, interjection, colloquial vocabulary and domesticated proper nouns; stylistic translation transformation of expressivation (applied to stylistically neutral ST vocabulary) and logisation (several phraseological units).
Verbalised stereotypic beliefs about Ruthenians in the German-language literature of Austrian Galicia and its Ukrainian translations
Authors: Stasenko Roksoliana
Published: May 2021

This article presents the ways to verbalise the stereotypic beliefs about Ruthenians, considering linguistic and extralinguistic factors. The study is based on the German-language literature, namely of works of Alexander von Guttry, Salcia Landmann, Leopold von Sacher-Masoch and Karl Emil Franzos written during the period of the Kingdom of Galicia and Lodomeria (1772–1918), or simply Austrian Galicia. The selection of works was carried out according to the following criteria: German-language source text, time of writing the work, its plot, existence of Ukrainian translation in the postmodern era. The stereotypes about Ruthenians were singled out using the keywordsRuthene, ruthenisch, Ukrainer, ukrainisch, рycuн, рycuнсьκuŭ, yκраїнеųь, yκраїнcьκuŭ. The stereotypes themselves are considered as simplifying ideas about the character, appearance, daily life, habits and traditions of a certain social group, in this case – the Ruthenians as one of the largest ethnic groups in Austrian Galicia. The implementing of Ruthenians stereotyping are represented on the level of lexis and grammar, context and discourse. The research results show that stereotypes about Ruthenians tend to have negative connotations, which is primarily due to their miserable situation in the Empire. However, the authors fondly described the positive qualities of the Ruthenians’ character, such as hospitality, talent for singing, kindness. Within the framework of a cultural approach in translation studies, which takes into account the cultural, social and historical factors of writing the source and target texts, the ways of verbalising the Ruthenians stereotyping in modern translation are examined.
Constructionist basis of composing and translating political speeches: A case study of President Trump’s inaugural address
Authors: Talavira Nataliia
Published: May 2021

Application of the principles and tenets of cognitive linguistics to translation studies rests on the assumption that both of them employ the same meaning process while working with a text. Procedures implemented to translate the inaugural address of American President Trump have been regarded from the point of view of Construction Grammar. The construction is viewed as the main translation unit representing source linguistic material below the level of the text. The paper singles out from the translation of President Trump’s inaugural address equivalent constructions with identical form and meaning and non-equivalent pairings indicating transformations of structure or semantics in the original constructions. Syntactical modifications include the change of word order, grammar tenses or omission of construction component, while lexical transformations result in generalization, carried out by words with more abstract meaning than those in the source construction; simplification, representing separate objects or features from the array of denoted in the source pairing; and specification accentuating and detailing particular entities.
Nurturing collaboration between translation business and academia in Ukraine
Authors: Bondarenko Kateryna , Bondarenko Oleksandr
Published: May 2021

The aim of this study is to investigate translation from the perspective of those who train and employ translators by analyzing the translator’s profile survey results that were collected between January 2014 and December 2014. 48 translation teachers from 21 universities and 117 translation industry representatives, mostly from Ukraine were asked about the importance of a set of competences required for a translator. Based on empirical evidence collected from the survey, this article attempts to evaluate the current state of the profession in Ukraine and to determine the ways of collaboration between translation business and universities. The authors detect sources of possible conflicts of interest and the factors that may resolve them.
Das postthrombotische Syndrom – Häufigkeit, Diagnosestellung, Probleme bei der Klassifikation
Authors: Hirsch Tobias
Published: May 2021

Die Phlebothrombose und ihr chronischer Folgezustand, das postthrombotische Syndrom, besetzen in der Gefäßmedizin eine zentrale Position. Die Erkrankungen sind für die Betroffenen mit erheblichen Konsequenzen verbunden, die sich in vielen Fällen auf das gesamte weitere Leben auswirken. Obwohl das postthrombotische Syndrom eine Vielzahl typischer Symptome auslösen kann, ist die klinische Diagnosestellung nicht immer eindeutig und erfordert häufig zusätzliche technische Untersuchungsmethoden.

Die immer tiefergehenden Erkenntnisse über die Pathophysiologie einerseits und die Weiterentwicklung diagnostischer und therapeutischer Verfahren andererseits haben gerade in den letzten 20 Jahren zu einer erheblich stärkeren Sensitivität gegenüber der Erkrankung geführt und die Etablierung neuer Methoden vorangetrieben. So hat die Duplexsonografie die Phlebografie als Goldstandard in der Bildgebung abgelöst und Katheter-Verfahren haben einen festen Stellenwert neben oder sogar anstelle der offenen Chirurgie eingenommen. Auch das Wissen über die seit Jahrzehnten etablierte Kompressionstherapie hat sich weiter vermehrt, sodass auch die konservativen Behandlungsstrategien einen Wandel erfahren haben.

Während für die Diagnostik und Therapie der Venenthrombose und Lungenembolie Leitlinien vorliegen, existieren keine aktuellen Empfehlungen, die die modernen Entwicklungen für das postthrombotische Syndrom berücksichtigen.

Der Übersichtsartikel befasst sich mit dem diagnostischen Vorgehen unter der besonderen Berücksichtigung der Duplexsonografie und ordnet die weiteren zur Verfügung stehenden bildgebenden und funktionsdiagnostischen Methoden ein.
Gesundheitskompetenz: Deutschland in der digitalen Aufholjagd
Einführung technologischer Innovationen greift zu kurz
Authors: Schmidt-Kaehler Sebastian , Dadaczynski Kevin , Gille Svea , Okan Orkan , Schellinger Alexander , Weigand Marcel , Schaeffer Doris
Published: May 2021

Zur digitalen Transformation des Gesundheitswesens sind vom
Bundesgesundheitsministerium in jüngster Zeit mehrere Gesetze
verabschiedet worden, die weitreichende Innovationen zur Verbesserung der
Versorgung und Erhöhung der Leistungsfähigkeit des
Gesundheitssystems beinhalten. Gleichzeitig steigen damit die Anforderungen an
die Nutzer:innen im Umgang mit digitalen Anwendungen und Informationen. Digitale
Gesundheitskompetenz erhält dadurch besondere Relevanz. Vorliegende
Studien zeigen jedoch, dass die digitale Gesundheitskompetenz der
Bevölkerung in Deutschland nicht gut ausgeprägt ist. In dem
Beitrag werden daher die Herausforderungen, Lücken und Perspektiven bei
der Einführung und Umsetzung der neuen Digitalisierungsgesetze
diskutiert und 6 Punkte benannt, wie die digitale Gesundheitskompetenz
gefördert und Nutzer:innen stärker einbezogen werden
können.
Rare Atypical Presentation of a Neuroblastoma of Posterior Mediastinum
Authors: Singh Vishal , Tyngkan Lamkordor , Bhat Abdul Rashid
Published: May 2021

Introduction Neuroblastoma is the third most common malignancy and one of the most common neurogenic tumors of posterior mediastinum in the pediatric age group. A posterior mediastinal tumor causing spinal cord compression is an important example of an oncologic emergency arising from a neurogenic tumor. We present a rare case of posterior mediastinum neuroblastoma, with exclusive lower limb weakness presenting at an unusually older age.

Case Presentation A 6-year-old girl reported with upper back ache and sudden onset progressive bilateral lower limb weakness, with difficulty in urination for 10 days. The weakness had progressed to paraplegia on the day of presentation. On examination, the child was observed to have loss of tone and power in both lower limbs and bilateral extensor plantar reflex. Chest X-ray showed heterogeneous opacity involving most of the left lung. Contrast-enhanced MRI showed posterior mediastinal tumor, extending into spinal canal. Patient underwent D3 to D6 laminectomy with subtotal tumor excision and spinal decompression. Crush biopsy showed round cell tumor, and final histopathological examination revealed poorly differentiated neuroblastoma, which was strongly positive for neuron-specific enolase on immunohistochemistry. The surgery was followed by chemotherapy, and the patient remained symptom free on 2-year follow-up.

Discussion The presenting symptoms in case of thoracic neuroblastoma may include airway obstruction and chronic cough. Sometimes, it may present with weakness, limping, paralysis, and bladder and bowel disturbances in case of spinal cord involvement. Posterior mediastinal neuroblastoma presenting with paraparesis is uncommon. In our case, the child presented with isolated lower limb flaccidity with no other classical symptoms. To the best of our knowledge and thorough study, only four cases of posterior mediastinum neuroblastoma presenting with lower limb paralysis has been published in the English literature to date.

Conclusion Tumor usually presents with pressure symptoms, caused by the mass in the posterior mediastinum, but it’s almost exclusive occurrence in the pediatric population warrants a thorough investigation in patients presenting with not only a symptomatic mass but also exclusive lower limb neurological symptoms.
What’s so special about born globals, their entrepreneurs or their business model?
Authors: Hennart Jean-François , Majocchi Antonio , Hagen Birgit
Published: May 2021

There is near unanimity among international business scholars that it takes more time to expand internationally than domestically. Hence, this is why some are puzzled by born globals (BGs), firms that make large foreign sales at birth or shortly afterwards. Explanations given for this “anomaly” are that BGs have exceptional resources—advanced technologies and a high international orientation on the part of their entrepreneurs, and that they rely on cheaper internationalization strategies like the Internet and networks. What is almost completely overlooked is the role of the BG’s business model (BM). We analyze the time it took for a sample of Italian SMEs to reach BG status (25% foreign over total sales) within a three-year time span. Entering both international entrepreneurship (IE) and BM variables, we find that, among the IE variables, a firm’s technological intensity, the number of years their founders studied abroad and their foreign language fluency, as well as their use of domestic networks, are statistically insignificant. Variables measuring a firm’s focus on a niche BM, on the other hand, are statistically significant, along with the international work experience of the founders, with the niche BM explaining a higher level of variance with greater accuracy.
Ultrafast time-resolved x-ray absorption spectroscopy of ionized urea and its dimer through ab initio nonadiabatic dynamics
Authors: Shakya Yashoj , Inhester Ludger , Arnold Caroline , Welsch Ralph , Santra Robin
Published: May 2021

Investigating the early dynamics of chemical systems following ionization is essential for our understanding of radiation damage. However, experimental as well as theoretical investigations are very challenging due to the complex nature of these processes. Time-resolved x-ray absorption spectroscopy on a femtosecond timescale, in combination with appropriate simulations, is able to provide crucial insights into the ultrafast processes that occur upon ionization due to its element-specific probing nature. In this theoretical study, we investigate the ultrafast dynamics of valence-ionized states of urea and its dimer employing Tully's fewest switches surface hopping approach using Koopmans' theorem to describe the ionized system. We demonstrate that following valence ionization through a pump pulse, the time-resolved x-ray absorption spectra at the carbon, nitrogen, and oxygen K-edges reveal rich insights into the dynamics. Excited states of the ionized system give rise to time-delayed blueshifts in the x-ray absorption spectra as a result of electronic relaxation dynamics through nonadiabatic transitions. Moreover, our statistical analysis reveals specific structural dynamics in the molecule that induce time-dependent changes in the spectra. For the urea monomer, we elucidate the possibility to trace effects of specific molecular vibrations in the time-resolved x-ray absorption spectra. For the urea dimer, where ionization triggers a proton transfer reaction, we show how the x-ray absorption spectra can reveal specific details on the progress of proton transfer.
Broadband electrically controlled bismuth nanofilm THz modulator
Authors: Song Qi , Chen Hao , Zhang Min , Li Ling , Yang Junbo , Yan Peiguang
Published: May 2021

In order to greatly promote impressive applications in terahertz (THz) photonics, research on active optoelectronic THz devices with high performance such as modulators is still a vital work. Electrically controlled THz modulators with a large modulation depth and wide modulation bandwidth are urgently needed for THz technology. Herein, a bismuth (Bi) nanofilm is rationally designed as an electrically controlled THz modulator combining the advantages of high electron mobility and near zero bandgap. The Bi nanofilm devices are produced by the magnetron sputtering deposition method, and the maximum modulation depth reaches 70% in the transmission spectrum. We have demonstrated an electrically tunable Bi nanofilm of modulating THz waves dynamically. Moreover, the Bi nanofilm modulator exhibits broadband modulation performance within a wide frequency range from 0.1 to 1.1 THz. Taking advantage of the excellent modulation property and simple approach to design, semimetal based devices are promising components for the development of high performance THz applications.
Protoctists, monerans, fungi, lichens and acellular organisms.
Authors: Rees Paul A.
Published: May 2021

This chapter contains questions about the classification and characteristics of a wide range of organisms including prokaryotes, protozoa, algae, slime molds, fungi, lichens and disease-causing microbes such as viruses and prions. The questions are divided into three levels: foundation, intermediate and advanced.
Fishes, amphibians and reptiles.
Authors: Rees Paul A.
Published: May 2021

This chapter contains questions on the classification, anatomy, evolution and characteristics of the fishes, amphibians and reptiles.
Kalanchoe pinnata (cathedral bells).
Authors: Rojas-Sandoval Julissa , Acevedo-Rodríguez Pedro
Published: May 2021

In Queensland, Australia, K. pinnata was ranked 47 of 200 invasive naturalized plants (Batianoff and Butler, 2002). In New South Wales, Australia, it is a declared noxious weed under that state's Noxious Weed Act (1993) in the shire of Maclean. The species is listed as W2 requiring that the weed must be fully and continuously suppressed and destroyed by land managers. K. pinnata is described as a moderate invader of the Pacific islands of Hawaii, French Polynesia and Palau (Meyer, 2000). In the Galapagos Islands, K. pinnata invades disturbed sites and native vegetation (Soria et al., 2002). K. pinnata is recognized as a threat to island ecosystems by the Pacific Island Ecosystems at Risk project (PIER, 2004). It continues to be made available as a garden ornamental in many countries and is therefore likely to spread further.
Linaria vulgaris (common toadflax).
Authors: Gassmann André , Parker Chris
Published: May 2021

L. vulgaris is a perennial flowering plant with a spreading root system. It forms dense mats which can compete with crops and suppress native vegetation, reducing pasture productivity and/or biodiversity (ISSG, 2015). Native to temperate areas of Europe and Asia, it has been widely introduced to North America, Australia, New Zealand and South Africa, and is regarded as noxious in many of these countries. By inclusion in indexes of invasive species it is regarded as invasive widely in Canada and in the USA (Alberta Invasive Species Council, 2014; Invasive Plant Atlas of the United States, 2015). L. vulgaris received an invasive index of 69 (out of a maximum of 100) in Alaska, USA (ANHP, 2011). It is also regarded as invasive within its native range in Serbia (Dzigurski and Nikolic, 2014).
Myriophyllum spicatum (spiked watermilfoil).
Authors: Murphy Kevin
Published: May 2021

M. spicatum (spiked watermilfoil) is an invasive submerged aquatic weed characteristic of temperate regions, as far north as the UK and Canada, and as far south as South Africa. It is recorded from at least 57 countries, probably native to all those Palearctic countries in which it occurs, less certainly an exotic in southern Afrotropical countries; and undoubtedly an alien invasive in the Nearctic (USA and Canada). It is a particular problem of streams, rivers and small water bodies where it primarily impedes flow and causes a range of associated environmental problems, such as water deoxygenation. Long-distance spread via the aquarium/garden trade has been a notable anthropogenic vector. Once introduced to a new region it spreads rapidly, primarily by vegetative stem fragmentation, and transport attached to boats, though seed production also occurs. It is listed as a notifiable/prohibited weed in many states and provinces of the USA and Canada, and in South Africa.
Opuntia aurantiaca (jointed cactus).
Authors: Pasiecznik Nick
Published: May 2021

O. aurantiaca has shown itself to be a serious invasive weed on natural grasslands in Australia and South Africa for over a hundred years, reducing carrying capacity, injuring livestock and reducing the value of animal products. It was introduced as an ornamental species and spread rapidly via dispersal of vegetative parts. However, introduction of cochineal and the cactus moth as biological control have reduced populations in infested areas to scattered plants or patches which now have mostly only a nuisance value. Nonetheless, there is a risk of further introduction into new areas via the trade in ornamental succulents and/or its escape where already present.
Antibiotic residues from aquaculture farms and their ecological risks in Southeast Asia: a case study from Malaysia
Authors: Thiang Ee Lean , Lee Choon Weng , Takada Hideshige , Seki Kanako , Takei Ayaka , Suzuki Satoru , Wang Aijun , Bong Chui Wei
Published: May 2021

Background and Objectives:
One major source of antibiotic contamination in the sea is from aquaculture. We monitored the concentration of commonly used antibiotic classes and antibiotic resistance genes (
tet
(M),
sul1, sul2
and
sul3
) in aquaculture farms in Peninsular Malaysia.

Methods:
Antibiotic residues and resistance genes were quantified using high-performance liquid chromatography and real-time PCR respectively. Risk quotients in European technical guidance document on risk assessment was used to assess the potential environmental risk.

Results:
We detected 23 antibiotics with tetracyclines, sulfonamides and quinolones were the most frequently detected classes, indicating a wide distribution of antibiotics in Malaysian aquaculture farms. The dendrogram and heatmap revealed three groups of antibiotic concentration patterns but with no differences in the types of antibiotics usage among aquaculture farms. The ARGs (10
−3
copies/16S) were detected in >90% of the sites except for
sul3
. Ciprofloxacin, enrofloxacin, norfloxacin and lincomycin posed risks to cyanobacteria and algae in Kelantan, Perak and Pahang.

Conclusion:
Relative to Asian aquaculture farms, the residues detected here were at low or moderate levels except for quinolones. This study will be useful to develop effective management of aquaculture wastewater in order to mitigate antibiotic pollution and transmission of ARGs to humans through the food chain.
Understanding the isoscaling relationship in the fissioning system with evaluated data *
Authors: Chen Yong-Jing , Liu Yang-Yang , Liu Li-Le , Wang Fang-Yuan , Zhang Ying-Xun
Published: May 2021

The isoscaling parameters

in the fissioning systems, i.e., those extracted from the Evaluated Nuclear Data Library (ENDF/B-VIII.0) and the Joint Evaluated Fission and Fusion File (JEFF-3.3), show an obvious difference from simple statistic model prediction where only the symmetry energy plays the dominant role. To explain the

as a function of the charge number of the fission fragment, a statistic scission point model is adopted. Our analysis shows that the effects of the shell correction, nuclear shape deformation, and intrinsic temperature of fission fragments are indispensable as well as the symmetry energy. Furthermore, an alternative method for extracting the intrinsic temperatures of fission fragments is proposed based on the isoscaling relationship in fission fragments. The intrinsic temperatures of the light fragments are higher than those of the heavy fragments.
Experimental study regarding the implications of “Eco - Design” Directive over conception and performances of small boilers
Authors: Antonescu N. , Stanescu D. P.
Published: May 2021

The paper makes an analyse regarding the implications of “Eco - Design” Directive over conception and performances of small boilers. The study is based over a large number of tested boilers under certified conditions. There are mainly two families of condensing boilers: those projected from the beginning as condensing boilers and those who initially were non-condensing boilers and then were shifted to condensing functioning. The study compares the technical performances reached by the boilers of each family considering also the economical and engineering constraints implied.
Evaluation of a Ventilating System for Indoor Air Quality and Smoke Exhaust during Fire inside an Underground Parking
Authors: Bode F , Sandu M , Năstase I , Calotă R
Published: May 2021

Together with the modern urbanization development, the number of underground cars parkings has grown significantly. They are provided with ventilation systems to evacuate the cars emissions and with smoke exhaust systems which intervene in case of fire. Generally, the same exhaust system is used to evacuate the emissions and the smoke from a potential fire even if the working parameters are not the same for both scenarios. The paper deals with a case study regarding an underground parking designed for 15 cars. Numerical simulations using CFD tools have been performed to establish the CO concentrations. The results prove that the CO concentration limits are exceeded due to the positioning of the exhaust grills. In case of a fire, the temperatures are still high. The conclusion is that CFD simulations are needed for this type of ventilating systems design and that only following the regulation prescriptions is not enough in case of fires.
Behaviour simulation of a main pipe depending on it’s execution material, in a non-steady flowing state (water hammer)
Authors: Popa I , Ungureanu I D , Perju S , Martan F M
Published: May 2021

The current paper presents the optimal ways for choosing appropriate devices in order to protect the pressurized hydraulic installations in a water supply system, against water hammer phenomena. The case study done it in this research paper presents a hydraulic system formed by a main water pipe, and it’s behaviour regarding the water hammer phenomena, taking into account 3 types of pipe execution materials (ductile iron, polyethylene and glass reinforced pipe). The study includes also the protection equipment’s need it for each type of pipe material. Hydraulic simulation was made using a numerical calculation model, designed with a software special for non-steady flowing state in pressurized systems, called Bentley Hammer v.10i..
Study in the changes of the moisture content in wood
Authors: Teodorescu I , Erbaşu R , Branco J M. , Tăpuşi D
Published: May 2021

The presence of water in wooden elements is an important factor in the understanding of the evolution of this material used for a structure. This happens because wood has the ability to change its volume due to climate variations; it can shrink or it can double its size depending on the season. This can influence the mechanical properties of the wooden piece and introduce in the structure deformations and changes in sectional efforts that can be very dangerous. For this study, environmental conditions have been tampered with so that wood that has moisture content of 12% will intake or output water, in order to arrive at a moisture content of 8% respectively 16%. In this way, the moisture content of untreated Spruce (Picea abies) and Chestnut (Castanea Sativa) has been modified in a climatic chamber at certain conditions of temperature and relative humidity. The wooden pieces have been verified for their moisture content in an oven with a temperature of 105°C after a complete dry. The purpose of the study is to follow the behaviour of wooden pieces when found in other environments.
Renewable energy in European countries, retrospective analysis
Authors: Stoenoiu C E , Birou I , Cristea C , Serban F M
Published: May 2021

This study performs an exploratory analysis of the evolution of primary production of RES for EU28 countries over the ten years studied. Through the analysis, the document presents: the structure of production by sectors of production and by renewable energy sources, analyses the evolution of the mentioned indicators both in total and in detail on each renewable energy source and allows the identification of differences in the level of production from RES: between countries and regions. The analysis shows that these countries have implemented EU strategies in the field and exceeded the proposed target for 2020 starting from 2017. Among the most important RESs in primary energy production were the sources: Hydro, Wind and Solar, in the countries from the EU28 due to the existence of a natural potential that has been exploited and encouraged by the country-specific internal policies, but also due to the development of technologies and lower costs for these renewable energy sources.
Impact assessment of terrain specifics on wind energy production over semi-complex terrains
Authors: Terziev A K , Iliev I K , Beloev H I , Panteleev Y P
Published: May 2021

Estimated energy production for a wind farm depends on the wind shear who is influenced by both the roughness factor and terrain specifics. Tall towers measurements allow accurate determination of the velocity profile around the mast. Away from the point of measurements the reliability of the extrapolated data depends on complexity of the terrain and the extrapolation technique applied, as the error may exceeded 30 %. In terms of this, the use of one high mast to predict the energy potential is inaccurate. However, installing more than two tall masts is expensive. Therefore, a novel approach is used to analyse the wind potential for semi-complex terrains - one tall and one short (reference) masts. The novelty in the study here is that the short mast collects wind data for high and low terrain points. The data collected shows that the complex character of the terrain significantly increases the thickness of the surface boundary layer making the data obtained with 20 m masts quite unreliable. However, the 20 m mast data provides useful information for boundary layer that is used for refinement of the tall tower wind shear. Thus, the use of high and short masts improves the estimated energy production.
Fault analysis for wastewater treatment plant equipment using thermography
Authors: Nicolescu F , Robescu D N
Published: May 2021

Infrared thermography is a very effective non-destructive control method for detecting and locating defects. It is a technique that allows to obtain, with the help of an equipment called thermal imaging camera, the image or thermal imprint of a targeted area in the field of infrared radiation. Infrared thermography deals with the acquisition and analysis of thermal information obtained using non-contact infrared scanning equipment.
Thermal comfort evaluation inside a car parked under sun and shadow using a thermal manikin
Authors: Danca P A , Nastase I. , Croitoru C. , Bode F. , Sandu M.
Published: May 2021

During the summer, vehicle passengers may reach a comfort state, if the sun direct solar radiation do not affect them. Human body parts exposed to the sun, experience a high uncomfortable state which have a direct impact to the global sensation of the all body. The purpose of this study is to deepen the knowledge about the thermal phenomena that occur in cabin and its effects to the thermal state experienced by the driver during a summer sunny. This way we compare temperatures, humidity and Equivalent Temperature (teq) index acquired with an advanced thermal manikin for 3 scenarios. Results reveals that for a direct solar radiation of 500 Wm−2 temperature inside of the car rise with 10°C. Also, the values of teq for the manikin parts exposed exceed value of 36°C leading to a very hot thermal state for all body.
Small scale simulation of artificial smoke optical properties
Authors: Burlacu D , Georgescu A M , Trache Ş N
Published: May 2021

The use of numerical simulations in Fire Safety Engineering provides faster and more affordable ways of research and development, with the drawback that their use is often conditioned by available expertise and thorough validation. In this paper, the results of two small scale numerical simulations of artificially generated smoke are being validated by comparison of the smoke’s light extinction coefficient values and those of the visibility levels in the testing enclosures with the results obtained through experimental testing. The influence of grid size on simulation accuracy and computational time is evaluated by presenting the small gain in accuracy and the important increase in computational time for different sized meshes, showing that at least in numerical simulations dealing with artificial smoke, a larger grid size can produce fairly accurate results. A comparative evaluation of the effect that the positioning of the measuring devices inside the testing enclosure has on the results is also performed, both for the experimental setup and the numerical simulations.
Seismic behaviour of ten storeyed concentrically braced frames
Authors: Marcu R , Köber H
Published: May 2021

The present paper is intended to illustrate the main advantages and disadvantages of four different ten storeyed concentrically braced frames designed under severe seismic actions. All structural members (braces, beams and columns) had built up I-shaped cross-sections, sized according to the provisions of P100-1/2013 and SR EN 1993-1-1. Each of the four considered braced frames were subjected to nonlinear dynamic analyses, using three base excitations (from the 1977-, 1986- and 1990-Vrancea earthquakes), recorded at the INCERC Institute in Bucharest, calibrated all to a peak ground acceleration value of about 0.3 times the acceleration of gravity. Rayleigh damping was taken into consideration. The maximum values of inelastic deformations, bending moments and axial forces in various structural elements, the amount of energy dissipated through plastic deformations and the estimated steel consumption were compared. The extreme values of base shear forces and horizontal displacements were observed. The successive formation of plastic hinges in the different braced frames was analysed.
The soil structure interaction for 3D irregular problem
Authors: Kamel A , Andronic A
Published: May 2021

As we are going through advancements in construction field and the imperatives of reliability requirements of the structure, soil always have an important role as a material that supports the whole structures, the Soil structure interaction is one of the most vital arts, nowadays and with the new technologies of soil testing and as we get closer for a better understanding of soil behaviour, we have the chance to model and anticipate the real behaviour of the structures resting on the soil. In this study, the effect of soil as a supporting material will be revealed and carefully studied to clarify and dye out the importance of Soil structure Interaction, and its effect on the governing efforts that are used in design of the structural elements. Soil structure interaction it is not just about the coupling of the soil and the structure, but also studying the effect of construction phase change between the adjacent buildings. The elastic settlements are going to be calculated using analytical solution, Boussinesq iterative solution, and elastic solution of Abaqus finite element model, then will be coupled as springs that model soil elastic half space (EHS) to check the impact of SSI.