bluuebunny/crossref_metadata_2025 huggingface dataset:
Occurrence of intestinal parasites in sewage samples and efficiency of wastewater treatment systems in Tunisia
Authors: Sabbahi S. , Trad M. , Ben Ayed L. , Marzougui N.
Published: February 2018

The present study aimed to: (i) identify helminth eggs and protozoan cysts in wastewater samples to which both human and animals could be exposed when they are reused in agriculture; and (ii) evaluate the efficiency of their removal by two wastewater treatment systems (activated sludge and lagoon). For these purposes, 234 wastewater samples (117 raw, 117 treated) were collected from 20 wastewater treatment plants (WWTPs) in Tunisia over a one-year sampling period. Parasitic load was enumerated by the modified Bailenger method. The results showed that helminth eggs found were Nematodes mainly represented by Ascaris sp. (95%), Hookworm species (50%), and Enterobius vermicularis (45%). For Cestodes, species identified were Taeniid eggs (85%), Hymenolepis nana (70%), Hymenolepis diminuta (55%) and digestive Strongyles. Among protozoa, Giardia sp., Entamoeba histolytica/dispar/moshkovskii and Entamoeba coli cysts were found in 100% of raw wastewater samples. The overall removal efficiency of helminth eggs and protozoan cysts in the treatment plants ranged from 56.5 to 100% and from 50.4 to 95.5%, respectively. The result from Multiple Correspondence Analysis (MCA) shows that the close clustering of the parasitic mean removal levels indicates that there is little difference in wastewater treatment processes between the WWTPs examined.
Identifying critical components causing seasonal variation of activated sludge settleability and developing early warning tool
Authors: Wang Xiaodong , Bi Xuejun , Liu Changqing , Ratnaweera Harsha
Published: February 2018

Settleability of activated sludge is one of the most common problems that restricts the efficiency of activated sludge system. Obvious seasonal variation of settleability was found in the activated sludge system of a full scale wastewater treatment plant (WWTP) during 2 years of observation. Principal component analysis (PCA) was applied to study the correlation between diluted sludge volume index (DSVI), operational and environmental factors. As a result, temperature and mixed liquid suspended solids (MLSS) were found as the most significant variables relating with DSVI variation. Multivariate regression, partial least squares regression and support vector machine regression were applied to develop early warning models for DSVI prediction. The multivariate regression model was proved as a simple and easy-to-interpret early warning tool to be applied in practice. Based on the ratio of volatile substances in biomass, the original cause of seasonal variation of settleability was further discussed by referring the storage-biodegradation mechanism. Moreover, the results of this work also suggested that modern statistical techniques were important to investigate complicated engineering problems. This study provided insights of seasonal variation of activated sludge settleability by systematic investigation of long-term data of a full scale WWTP.
Peningkatan hasil belajar lompat jauh gaya jongkok dengan menggunakan rekaman visual
Authors: Syarif Ahmad
Published: February 2018

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar lompat jauh gaya jongkok dengan menggunakan  rekaman visual pada siswa kelas IX SMPN Satu Atap Manuru, Kecamatan Siotapina. Penelitian ini adalah penelitian tindakan kelas sebanyak dua siklus. Penelitian dilaksanakan pada bulan Maret 2014. Subjek penelitian ini adalah 30 siswa kelas IXA SMPN Satu Atap Manuru di Kabupaten Buton, Sulawesi Tenggara. Hasil penelitian memperlihatkan rekaman visual dapat meningkatkan hasil belajar siswa. Peningkatan ini dibuktikan dengan pengetahuan, penguasaan teknik,  dan hasil lompatan siswa. Terjadi peningkatan hasil belajar lompat jauh dengan capaian nilai pengetahuan rata-rata di atas KKM 70, aspek penguasaan teknik mencapai kategori baik, dan hasil lompatan mencapai lebih dari 240 cm. Improving the Learning Outcomes in Long Jump of Squat Style Using Visual Records AbstractThis study aims to reveal: improving the learning outcomes in long jump of tuck style using visual recordings of class IX students at SMPN Satu Atap Manuru, District of Siotapina. This research is classroom action research done in two cycles. The research was conducted in March 2014. The research subjects in this study were 30 students of class IXA SMP Satu Atap Manuru, Buton, Southeast Sulawesi. The results of the study showed an increase, as evidenced by the mastery of the technique and results of the student’s jumps. The increase in long jump learning outcomes with achievement of the average value of knowledge over the 70 minimum completeness criteria, aspects of technical mastery reached either category, and the results jump to more than 240 cm.
Śp. Ks. Josef Scharbert (1919–1998)
Authors: Chmiel Jerzy
Published: February 2018

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A COMPARITIVE STUDY OF SELF CONCEPT OF XI CLASS STUDENTS OF COMMERCE AND SCIENCE STREAM
Authors: Singh Dileep Kumar , Singh Geeta
Published: February 2018

The study investigates the Self Concept of the XI class students of commerce and science stream. The sample of the study consists 800 students of public school from Mathura District of U.P. Self Concept Questionnaire developed by Dr Raj Kumar Saraswat was used to collect the relevant data Mean, S.D., t- test and Correlation was used to analyse the data. The finding revealed that there exists positive difference in Self Concept of XI class of commerce and science stream.
Hearing Aid Use in Older Adults With Postlingual Sensorineural Hearing Loss: Protocol for a Prospective Cohort Study (Preprint)
Authors: Hughes Matthew E , Nkyekyer Joanna , Innes-Brown Hamish , Rossell Susan L , Sly David , Bhar Sunil , Pipingas Andrew , Hennessy Alison , Meyer Denny
Published: February 2018

BACKGROUND

Older adults with postlingual sensorineural hearing loss (SNHL) exhibit a poor prognosis that not only includes impaired auditory function but also rapid cognitive decline, especially speech-related cognition, in addition to psychosocial dysfunction and an increased risk of dementia. Consistent with this prognosis, individuals with SNHL exhibit global atrophic brain alteration as well as altered neural function and regional brain organization within the cortical substrates that underlie auditory and speech processing. Recent evidence suggests that the use of hearing aids might ameliorate this prognosis.

OBJECTIVE

The objective was to study the effects of a hearing aid use intervention on neurocognitive and psychosocial functioning in individuals with SNHL aged ≥55 years.

METHODS

All aspects of this study will be conducted at Swinburne University of Technology (Hawthorn, Victoria, Australia). We will recruit 2 groups (n=30 per group) of individuals with mild to moderate SNHL from both the community and audiology health clinics (Alison Hennessy Audiology, Chelsea Hearing Pty Ltd). These groups will include individuals who have worn a hearing aid for, at least, 12 months or never worn a hearing aid. All participants would be asked to complete, at 2 time points (t) including baseline (t=0) and follow-up (t=6 months), tests of hearing and psychosocial and cognitive function and attend a magnetic resonance imaging (MRI) session. The MRI session will include both structural and functional MRI (sMRI and fMRI) scans, the latter involving the performance of a novel speech processing task.

RESULTS

This research is funded by the Barbara Dicker Brain Sciences Foundation Grants, the Australian Research Council, Alison Hennessy Audiology, and Chelsea Hearing Pty Ltd under the Industry Transformation Training Centre Scheme (ARC Project #IC140100023). We obtained the ethics approval on November 18, 2017 (Swinburne University Human Research Ethics Committee protocol number SHR Project 2017/266). The recruitment began in December 2017 and will be completed by December 2020.

CONCLUSIONS

This is the first study to assess the effect hearing aid use has on neural, cognitive, and psychosocial factors in individuals with SNHL who have never used hearing aids. Furthermore, this study is expected to clarify the relationships among altered brain structure and function, psychosocial factors, and cognition in response to the hearing aid use.

CLINICALTRIAL

Australian New Zealand Clinical Trials Registry: ACTRN12617001616369; https://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12617001616369 (Accessed by WebCite at http://www.webcitation.org/70yatZ9ze)

INTERNATIONAL REGISTERED REPOR

RR1-10.2196/9916
Unpacking the Concept of Complexity in the Instructed SLA Research: Towards an Acquisitional Definition
Authors: Jung Ji-Yung
Published: February 2018

Over the past few decades, the field of second language acquisition (SLA) has seen a remarkable increase of interest in the study of instructed second language acquisition (ISLA), which “investigates second language (L2) learning or acquisition that occurs as a result of teaching” (Loewen, 2014, p. 2). The importance of this subfield has particularly been emphasized for the sake of adult L2 learners, who, due to biological and cognitive constraints, have difficulty acquiring a target language (TL) solely based on naturalistic input (e.g., Han, 2004; Long, 1990). For this, ISLA research has suggested the utilization of focus on form (FonF), a pedagogical approach that attempts to engage learners’ metalinguistic attention in an otherwise solely meaning-based environment (Doughty & Williams, 1998; Long, 1991; Long & Robinson, 1998). According to Doughty and Williams (1998), FonF involves an array of pedagogical options, ranging from implicit techniques (e.g., input flood, input enhancement, and recasts) that attempt to attract leaners’ attention to form, to explicit techniques (e.g., processing instruction, consciousness-raising, and dictogloss) that attempt to direct their attention to form.
Efectos esperados de la extracción de gas shale en el noreste de México: un enfoque cualitativo
Authors: Morales Ramírez Dionicio , Roux Ruth
Published: February 2018

En este artículo se identificaron y valoraron los efectos esperados de la extracción de gas shale en Tamaulipas, Nuevo León y Coahuila, ante la llegada inminente de compañías nuevas a la cuenca de Burgos, en el noreste de México. Con la metodología de criterios relevantes integrados se recopi­laron datos de informantes clave de los sectores académico, gubernamental y empresarial, de los tres estados. Según los resultados, 65 por ciento de las variables empleadas para evaluar dichos efectos, derivados del desarrollo de la indus­tria en la región, se asocian con cambios positivos, 15 con negativos y 20 se mantienen inalterables. Se sobreestimaron los beneficios esperados por la explotación de gas oil/shale, y existe preocupación por la disponibilidad de agua, dadas las condiciones geográficas y climatológicas de la región. Aunque la metodología empleada no especifica que se deba aplicar a un número óptimo de actores, se reconoce que el análisis podría mejorar significativamente entre mayor sea la cantidad de participantes. La contribución principal al campo de la evaluación de las repercusiones sociales es la adaptación de esta metodología, debido a la escasa literatura sobre el tema.
ORIENTASI NILAI BUDAYA PETANI RUMPUT LAUT DALAM PEMBANGUNAN DI DESA PED KECAMATAN NUSA PENIDA
Authors: Suwendri Ni Made
Published: February 2018

[Title: Cultural Value Orientation of the Seaweed Planters in Developing Ped Village, Nusa Penida District] Human’s cultural value orientation becomes important factor in achieving the purpose. It can be seen from its view ofliving.This research is purposed to get the deep understanding of cultural value orientation seaweed plantersin building of Ped Village, Nusa Penida District. This research used qualitative approach which is supported byquantitative data. The technique of collecting data is done through observation' concern interview, and library research. The data is analyzed throughqualitative descriptive way. According to the empiric data, it shows that the cultural value orientation whichis used by seaweed planters in Ped village, Nusa Penida district in solving theliving problems including of their views to the principal of life, principal of work, principalof time, principal of human, and principal of human's relation with nature. Mostof the principal goes to the improvement. The orientation shows theimportant dynamic for the successful of building in Nusa Penida District.
EVALUATION OF PAIN AND FUNCTIONAL DISABILITY BODY PARTS SEEN BETWEEN MUSICIANS PLAYING STRING INSTRUMENTS
Authors: Çalışgan Elisa , İmik Ünal , Talu Burcu
Published: February 2018

Purpose: The most common
discomforts in musicians are musculoskeletal injuries. Musicians who play
advanced instruments use their musculoskeletal systems for long periods of time
outside their normal position. Conventional treatment, including cold therapy,
passive motion, parafine, contrast and circular bath with additional ESWT
(Extracorporeal Shock Wave Therapy) and High Density Laser therapy are the
treatment methods of wrist and elbow Problems in patients with musician. The
aim of study is evaluated of pain and functional disability body parts seen
between musicians playing string instruments.Method: Our randomized,
blinded, controlled included 22 in musicans aged 16 to 50 years. Disabilities
of the Arm, Shoulder and Hand Score (DASH) which has minimal 0 and maximal 100
points, Oxford Elbow Scale which has minimal 0 and maximal 48 points, Shoulder
Pain and Disability Index (SPADI) which has minimal 0 and maximal 130 points.
Our the last evaluation form is Functional Situation Scale (FSS) which has
minimal 0 points and maximal 40 points. We compared conclusion of these forms
total points because our main goal was to determine the locations of
inflamation and pain seen substantially in musicians playing string
instruments. We compared our conclusion of questionnare with literatüre.Result: Many studies have demonstrated in vivo and in vitro evidence of frequence
musicians health problems. The main objective of the our study was to determine
localization of the pain, functional disabilityand evaluate whether consisting
of different reasons can lead to an improvement in activation of finger, wrist,
elbow ability in patients with musician and whether the effects of treatment on
pain and inflamation may persist or not. Also, mean
and standart deviation of FSS was 36,18±1,43.
According to these scores and literatür, problems seen frequently in
musicians playing string instrument are inactivation of finger, wrist, elbow
ability because of pain, functional impairment and epicondilit.

Conclusion: In shortly, playing musical
instruments requires that the stimuli enter a position contrary to the natural
posture of the body according to the variety and cause of physical tension. It
is essential that the tension in the instrument technique is destroyed. According
to OES, FSS, Musicians playing string instrument have suffered from disability
of finger, wrist, elbow because of pain and restriction of functions.
An Aging Workforce and Work Environment: A Hotel Case Study in China
Authors: Yang Eunhwa , Nie Yiqian
Published: February 2018

The demographic trends of decreasing fertility rate and increasing life expectancy result in many older people remaining in the workforce. The biggest challenge for organizations is to establish a productive and safe working environment for their aging workers as their physical and cognitive capabilities decrease. The physical environment can influence workers' productivity, well-being, and safety. First, this study provides a literature review on how older workers' physical and cognitive conditions change. Second, a survey was conducted with older employees in a hotel located in Xi'an, China to understand the older employees' job satisfaction level, current diseases, possible reasons for their diseases or low productivity at work, and their preference on the future workspace. Lastly, this paper suggests several workplace strategies including ergonomic design in the workspace, flexible office layout, and improvement of indoor air quality to support the aging workforce with their working environment. Besides, the method can be used by other similar organizations to understand their aging employees' concerns and needs and to inform how to design the workplace for the aging employees.
Governance of the impact of price satisfaction dimensions on mobile banking adoption
Authors: Phiri Maxwell A. , Mbengo Pinigas
Published: February 2018

The Reserve Bank of Zimbabwe has encouraged the use of mobile banking services in a bid to promote financial inclusion and as an additive banking channel to compliment traditional banking model. The mobile phones have phenomenally changed the way the Zimbabwean banking industry is conducting business. The major purpose of this study is to critically examine the impact of influence of price satisfaction dimensions on behavioural intention to adopt mobile banking. The study used a descriptor-explanatory design whereby descriptive design was a precursor to explanation. Data was collected using a questionnaire and analysed using the Statistical Package for Social Sciences (SPSS). Findings show that relative prices had the strongest positive influence on behavioural intention to adopt mobile banking. However, price confidence did not indicate any significant relationship with dependent behavioural intention and the hypothesis so associated was therefore not supported. Price fairness and price transparency had negative significant relationships with the dependent variable behavioural intention to adopt mobile banking. Given these findings, the researchers made recommendations to various stakeholders in the banking industry. This study is important because it highlights the dimensions that are powerful predictors in attracting new customers in the mobile baking industry.
A mesterséges intelligencia: egy új létréteg kialakulása?
Authors: Pokol Béla
Published: February 2018

A tanulmány a mesterséges intelligencia utóbbi évtizedekben megfigyelhető, növekvő erejének elemzésére az eddigi evolúciós ugrások ontológiai leírását veszi alapul, elsősorban Nicolai Hartmann nyomán. Az emberi értelmi struktúrák növekedésével Hartmann a szellemi létréteg fizikai, biológiai és a lelki-tudati létrétegek fölé épülését, és ezzel együtt az ezek általi hordozottságát emelte ki. A tanulmány elemzései szerint a mesterséges, gépi értelem növekvő ereje az eddigiekben ezt csak fokozta, de új létrétegként nem emelkedett az eddigi emberi lét négy létrétegű szerkezete fölé. Ám ha a többek által prognosztizált önszerveződő mesterséges intelligencia tényleg kialakulna a jövő évtizedeiben, akkor ez egy új evolúciós ugrásként érintené a földi evolúció eddigi létrétegeit. A tanulmány hipotézise szerint azonban ez nem lenne leírható az eddigiek után egy újabb létréteg többi fölé épüléseként, hanem csak a függetlenné vált értelmi létréteg közvetlen fizikai-mechanikai létre való ráutaltságaként.

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Artificial intelligence: the emergence of a new layer?

Artificial intelligence in the functioning of modern societies is analysed in ontological categories based on the ontology of Nicolai Hartmann. The hierarchy of the layers of being has not yet been modified by artificial intelligence; machine intelligence can be seen as the enhancing of special human capacities. But if autonomous artificial intelligence could be completely self-organised in a digital platform in the future, then a new evolutionary layer of being could be grasped theoretically. Its distinction from the existing layers of being would lie in the fact that this new layer could function without the substructure of the biological and mental entities, and that this new layer of being could intertwine with the physical being layer alone.
Heat transfer studies in compact heat exchanger using ZnO and TiO2 nanofluids in ethylene glycol/water
Authors: Manikandan Srinivasan , Baskar Rajoo
Published: February 2018

This paper reports an experimental study on the heat transfer characteristics of a nanofluid consisting of ZnO/water/ethylene glycol (EG) and TiO2/water/ /ethylene glycol. In this study, the base fluids of ethylene glycol (EG):water (W) with volume fractions of 30:70, 40:60, and 50:50 were prepared, and 0.2 to 1.0 volume fractions of ZnO and TiO2 nanofluids were used as a cold side fluid. The prime objective of this study is to identify the effects of nanofluid concentration and three different hot fluid inlet temperatures viz., 55, 65 and 75?C C on the heat transfer enhancement of cold side fluid. The results are compared with base fluids and the percentage increase of the Nusselt number because of nanoparticle addition is noted both experimentally and theoretically. The results showed that at the hot fluid inlet temperature of 75?C, the increase in the Nusselt number is maximum with volume concentrations of 0.6 and 0.8% for ZnO and TiO2 nanofluids, respectively. The corresponding maximum Nusselt number enhancements are about 11.5 and 21.4%, respectively, for the base fluid volume fraction of 30:70 (EG:W). There is good agreement between the results calculated from experimental values and the correlation.
Atomization of silver nanoparticles suspension as an alternative for generating nanosilver aerosol
Authors: Rosa Paula , Martins Jaqueline , Lima Bruno , Oishi Marcos , Aguiar Mônica , Bernardo André
Published: February 2018

Nanomaterials are highly attractive for use in many applications, primarily due to their greater contact surface area and enhanced effects compared to the corresponding bulk materials. However, nanomaterials present risks to human health, since they are able to penetrate deep into the respiratory tract. It is therefore important to know the particle sizes of these substances, although such measurements can present difficulties associated with the generation of this type of material. It is also important to investigate the mechanism of aerosol generation, considering the properties of the starting material. Here, evaluation was performed of the generation of an aerosol of silver nanoparticles from a suspension, using an environmentally friendly and simple synthesis method. A reduction reaction was used to produce the silver nanoparticles. The aerosol was generated using a modified nebulizer inhaler, and particles were counted using an SMPS system. The measurements showed that the predominant particle sizes were 45.63?2.49 nm (determined by SMPS) and 50.7?0.7 nm (determined by DLS analysis).
Corruption, the shadow economy and innovation in Spanish regions
Authors: González-Fernández Marcos , González-Velasco Carmen , Fanjul-Suárez José-Luis
Published: February 2018

The aim of this paper is to analyze the effects of corruption and the shadow economy on innovation in the Spanish regions between 2000 and 2012. For this purpose, we use different proxies to approximate corruption and the shadow economy. We find evidence that corruption negatively influences innovation according to the results of the estimations. Regarding the effect of the shadow economy on innovation, the results also suggest that tax fraud, which is directly related to underground activities, leads to a decrease in regional innovation.
Numerical study on the influencing mechanism of twisted ratio in outward convex corrugated tubes with a twisted tape insert
Authors: Han Huaizhi , Yang Longbin , Hu Yiran , Yu Ruitian , Zhang Qun
Published: February 2018

Numerical investigations were conducted on flow and heat transfer in an outward convex corrugated tube with various structural twisted tape inserts. The study investigated the influence of twisted ratio on thermodynamic regulation and mechanism in the corrugated tube. The results indicate that Nusselt number in the corrugated tube (Nuc) exceeds those in the corrugated tube and smooth tube by 120-136% and 171-317%, respectively. Meanwhile, the friction factor increases by 148-153% and 476-514%, respectively. The best overall thermal performance (h = 1.97) is obtained with a high twist ratio (y/w = 5). However, the highest thermal performance (Nuc/Nus = 4.78) is obtained with the lowest twist ratio (y/w = 1.25).
Heat transfer performance of thermal-washing process for crude oil pipeline
Authors: Zhao Haiqian , Lu Zhenyu , Liu Xiaoyan , Jiang Hui , Liu Yang , Liu Lijun , Meng Fanbin
Published: February 2018

Study on the thermal wash multiphase flow and heat transfer characteristics have important significance to reduce energy consumption in wax removal. The thermal washing process of multiphase flow melting characteristics was simulated based on VOF model and RNG k-? turbulence model. The melting temperature and pressure curves of wax were obtained under different initial conditions. The results show that the distribution of temperature in the pipe is uneven due to the action of gravity. Compared with the water temperature, the flow velocity has a greater influence on convection type. When the flow velocity is 0.5 m/s, the flow pattern of liquid wax is mainly suspended flow. When the flow velocity is 2 m/s, the wall flow is observed. The greater speed is or the higher temperature is, the faster melting rate is. The temperature increment varies with positions of the pipeline. A suitable condition for heat clean of wax was determined, which could save the cost of natural gas.
Numerical simulation of polysilicon deposition characteristics in chemical vapor deposition process
Authors: An Lisha , Yang Zhe , Liu Yingwen , Bo Gao
Published: February 2018

This paper addresses the complex component evolution and silicon dynamic deposition characteristics in the traditional Siemens reactor. A two-dimensional heat and mass transfer model coupled with a detailed chemical reaction mechanism was developed. The distributions of temperature, velocity, and concentration are presented in detail. The influencing factors (such as feeding mole ratio, inlet velocity, base temperature and reactor pressure) on the molar concentration evolutions of ten major components and silicon growth rate were obtained and analyzed. Results show that base temperature is main influence of HCl mole fraction. In order to get more growth rate of silicon and better silicon quality, the complex operating parameters need to be reasonably designed on collaborative optimization.
Performance improvement of water-cooled screw chiller under part load operation conditions by the paralleling throttle mechanism
Authors: Ni Long , Wang Jijin , Qv Dehu , Cai Qiang , Yao Yang
Published: February 2018

Currently, water-cooled screw chiller is widely applied in commercial and industrial buildings, and the energy consumption of water chiller even could cover 70% of air-conditioning energy consumption in the most adverse operating conditions. Moreover, a number of chillers are running at a low rate under part-load state. In order to reduce the energy consumption of water-cooled screw chillers under part-load state, the paper presents the paralleling throttle mechanism. Through experimental study, under part-load state, it can be found that the by-pass tube diameter ?16 has the most positive effect on the performance of water-cooled screw chiller in four by-pass tube diameters. The oblique access mode is better than the vertical access mode, while the spiral access mode has little influence on the chiller performance. Because of paralleling throttle using, the exergetic loss of the evaporator and chiller is able to be reduced by 3.4%-15.5% and 0-6.7%, respectively. Meanwhile, the coefficient of performance of chiller can be enhanced by 0.2%-1.6%, and discharge temperature can be reduced by 0.4-2.7?C. In addition, the economic and environmental benefits of the advanced water-cooled screw chiller are more evident than the conventional water-cooled screw chiller's.
Numerical simulation of rotating stall in a two-stage axial fan
Authors: Zhang Lei , Engeda Abraham
Published: February 2018

Computational fluid dynamics calculations using high-performance parallel computing were conducted to simulate the prestall flow of a two-stage axial fan. The simulations were run with a full-annulus grid that models the 3-D, viscous, unsteady blade row interaction without the need for an artificial inlet distortion to induce stall. The simulation shows the initiation and development of the stall inception in two rotors of the axial fan. The results show that the stall inception first occurs in the second stage. The spike-type stall inception occurred in the second stage, which is different from the common views. The starting positions of stall inception in both rotors are in the same circumferential direction, and the stall inceptions in both rotors turn into mature stall cells at the same time. Also, the rotation speed of the stall inception and rotating stall in the two rotors are the same. The rotating stall in the first and second stage rotor impellers are both directly induced by the blade tip leakage flow. However, the blocked flow in the second stage rotor strengthens the leakage flow in the blade tip of the first stage rotor indirectly, resulting in the formation of stall inception.
Investigation of the dynamic characteristics of a thermal energy storage unit filled with multiple phase change materials
Authors: Li Xiaoyan , Huang Rongpeng , Miao Xinyue , Wang Xuelei , Liu Yabin , Zhang Xiaoya
Published: February 2018

In order to improve the thermal performance of thermal energy storage systems, a packed bed thermal energy storage systems unit using spherical capsules filled with multiple phase change materials (multi-PCM) for use in conventional air-conditioning systems is presented. A 3-D mathematical model was established to investigate the charging characteristics of the thermal energy storage systems unit. The optimum proportion between the multi-PCM was identified. The effects of heat transfer fluid-flow rate and heat transfer fluid inlet temperature on the liquid phase change materials volume fraction, charging time and charging capacity of the thermal energy storage system unit are studied. The results indicate that the charging capacity of multi-PCM units is higher than that of the conventional single-PCM (HY-2). For proportions 0:1:0, 2:3:3, 3:2:3, 3:3:2, 4:1:3, and 4:2:2, the charging capacity decreases by approximately 24.84%, 14.69%, 6.47%, 3.82%, and 1.13%, respectively, compared to the 4:2:2 proportion. Moreover, decreasing the heat transfer fluid inlet temperature can obviously shorten the complete charging time of the thermal energy storage systems unit.
The spectral radiative effect of Si/SiO2 substrate on monolayer aluminum porous microstructure
Authors: Yu Haiyan , Zhang Haochun , Su Chengshuai , Wang Kexin , Jin Liang
Published: February 2018

In this work, we have investigated theoretically the spectral radiative properties of a monolayer aluminum porous microstructure, including wavelength-selective transmission, reflection, and absorption. The finite-difference time-domain method for electromagnetics has been used to calculate the spectral radiative properties of the monolayer aluminum porous microstructure. It is found that the absorption spectra of the aluminum porous microstructure will generate two peaks within the wavelength ranging from 1.0 to 15.0 mm at normal incidence of light. Then the surface plasma polarition resonance could be observed clearly in the obtained results of this work, especially on the top surface near the orifice. Inside the porous structure, magnetic polariton is the crucial mechanism to elucidate for the power absorption enhancement. Furthermore, the absorption capacity of the aluminum porous structure with Si/SiO2 substrate has been analyzed, to explain the influence of base on the monolayer porous material. The findings indicate that the absorptance peak at 3 mm incident wavelength significantly improved with silicon substrate, while that of silica substrate has little difference with aluminum porous plate. The silicon and silica bases disrupted the distribution of the electromagnetic fields of the original aluminum porous structure, and form a new magnetic field within the subbases. Meanwhile the internal microcavity polarition of the porous structure has enhanced obviously near the bases.
Temperature field simulation research on the leakage inductance transformer
Authors: Ding Li , Man Xiaoying , Zhang Yumin , Cao Hailin , Hao Xiaohong , Xie Weihua
Published: February 2018

The structural and electrical parameters of leakage inductance transformers can significantly affect the efficiency, noise, and vibration of microwave ovens. The paper proposed a new iron core structure with finite element modeling and simulations of a leakage inductance transformer by both the electromagnetic field and system design simulation software. Different silicon steel sheet models were used for the upper and lower parts of the proposed iron core to reduce the loss and heat of the leakage inductance transformer. The iron core scheme was changed from the traditional E-I type to the E-E type. The feasibility of the new iron core scheme was tested by numerical results which showed that the maximum temperature rise of the leakage inductance transformer decreased significantly.
Youth self-report of child maltreatment in representative surveys: a systematic review
Authors: Laurin Jessica , Wallace Caroline , Draca Jasminka , Aterman Sarah , Tonmyr Lil
Published: February 2018

Introduction

This systematic review identified population-representative youth surveys
containing questions on self-reported child maltreatment. Data quality and ethical
issues pertinent to maltreatment data collection were also examined.

Methods

A search was conducted of relevant online databases for articles published
from January 2000 through March 2016 reporting on population-representative data
measuring child maltreatment. Inclusion criteria were established a priori; two reviewers
independently assessed articles to ensure that the criteria were met and to verify the
accuracy of extracted information.

Results

A total of 73 articles reporting on 71 surveys met the inclusion criteria. A variety
of strategies to ensure accurate information and to mitigate survey participants’ distress
were reported.

Conclusion

The extent to which efforts have been undertaken to measure the prevalence
of child maltreatment reflects its perceived importance across the world. Data on
child maltreatment can be effectively collected from youth, although our knowledge of
best practices related to ethics and data quality is incomplete.
Te Umutaoroa: A model for Patuheuheu hapū development
Authors: Rangiwai Byron
Published: February 2018

Patuheuheu is a hapū located in Waiōhau in the Eastern Bay of Plenty. In 1886, following Patuheuheu’s loss of land at Te Houhi - now known as part of Galatea, the Māori prophet, Te Kooti Arikirangi Te Turuki left behind a prophecy of hope that promised the return and restoration of the land. With land comes prosperity, spiritual connection, health and wellbeing, and mana (whenua). This article will canvass Māori development from 1900 to 2025, and community development theory, to set the scene for an exploration of the relationship between prophecy and hapū development. This will provide the wider historical and theoretical context for the Patuheuheu hapū development model that follows.
Mixed-up Theology
Authors: Rangiwai Byron
Published: February 2018

The Māori prophets of the nineteenth century developed syncretistic theologies as responses to colonisation and land loss. In so doing, these prophets provided models for us to follow with regard to maintaining aspects of our culture and traditions alongside introduced ideas. These strategies are useful because they demonstrate indigenous innovation in the face of devastation. They are examples of Māori development in action. The prophets showed us that ideas and knowledge, even if they seem to conflict, can co-exist beneficially.
Syncretism in Māori Theology
Authors: Rangiwai Byron
Published: February 2018

Theology is God talk

A human attempt to

Theorise the Divine
The strategy of sustainable public transportation system in the city of Rzeszów in the frame of Eastern Poland 2014-2020 Operational Programme
Authors: Pająk Anna , Orzeł Artur , Stepaniuk Róża
Published: February 2018

In the frame of Action 2.1. “Sustainable public transportation” of the II Priority Axis of the Eastern Poland 2014-2020 Operational Programme five viovodeships submitted 14 applications of investment projects of the total value of 2,1 billion PLN. The main aim of the Programme is to support complex projects of ecological integrated public transportation systems in the broad perspective of sustainable development. Three applications were submitted by the City of Rzeszów. The main aims of the projects are: the development of Intelligent Public Transportation System in Rzeszów, creation of the Communication Centre in Rzeszów as well as bus fleet modernization. The article refers to the characteristics of the projects in the context of current financial perspective of Eastern Poland Operational Programme.
Instrumentos consistentes para la enseñanza de fracciones en 4° grado
Authors: Rodríguez Rojas Palmenia de la Cruz , Olfos Raimundo
Published: February 2018

En Chile y, en general, para todos los sistemas educativos del mundo es conveniente disponer de instrumentos consistentes que midan los conocimientos que requiere un profesor para lograr que sus alumnos aprendan; instrumentos útiles para la formación inicial y continua del profesorado. El propósito de este estudio consistió en elaborar dos instrumentos consistentes, uno sobre el conocimiento profundo del profesor acerca de las fracciones y otro sobre el saber del profesor acerca del conocimiento que el alumno pone en juego al conceptualizar las fracciones en 4o. grado. Los instrumentos fueron aplicados en dos oportunidades a grupos de 30 profesores de primaria y una vez a 20 estudiantes de la carrera de Pedagogía en Matemáticas. Tras los respectivos procedimientos psicométricos se obtuvieron dos instrumentos, de 12 y 10 preguntas, con una consistencia interna de 0.74 y 0.75 alfa de Cronbach.
Use of ergonomic principles in manual order picking systems
Authors: Labus Nina , Gajšek Brigita
Published: February 2018

Successful companies are continually striving to streamline costs and optimize processes, enabling them to grow progress, develop and ensure competitiveness on the market. A large part of the costs arises in warehouses, where up to 55% of total costs are generated by order-picking, which makes it important and interesting in terms of research. The paper explores “picker to part” order-picking concept, which enables flexible work and is the optimal choice for most companies. The concept is associated with a high level of work-related injuries and work-related illnesses. Work requires physical efforts resulting from handling heavy goods, performing repetitive movements and using manipulative means. Human as the main actor of the concept affects the costs caused by picking and the quality of work done, which depends on technological support, physically and psychologically capable and motivated people. Due to the high costs of service, the focus on time planning and productivity increases. Contrary, the lack of attention is paid to the working conditions and the health status of the pickers. To overcome this gab, a review of scientific and professional literature on ergonomic principles in picking concept »picker to part« was carried out, followed by a quantitative survey of ergonomic properties in warehousing activities. Results revealed that more than 60% of the surveyed order-pickers associate problems with health with the characteristics of work, about 24% of them associate health problems with the use of a particular means of transport, and all agree that provided measures to reduce physical effort and greater support of technologies influence on increased speed of work and better health status of order-pickers.
Efficiency Analysis with non parametric method: Illustration of the Tunisian ports
Authors: Hlali Arbia
Published: February 2018

This paper applies a non-parametric method to provide level technical efficiency for 7 Tunisian ports during 18 years (1998-2015). These ports represent different data set. The use of the model of variable returns to scale (VRS) has led to interesting results. The results show that the most ports are characterized by low levels of technical efficiency, with the exception port of Rades. In addition, the result shows the variation of variable returns to scale and constant returns to scale of technical port’s efficiency. Furthermore, we concluded that the panel data improves the efficiency estimates.
Effects of Doxycycline Treatment on Hematological and Blood Biochemical Parameters in Dogs Naturally Infected with Ehrlichia canis
Authors: Petrov Elena Atanaskova , Ulcar Igor , Celeska Irena , Ilievska Ksenija , Trenkovska Pandorce Spasovska , Novakov Todor , Krstevski Kiril , Dovenski Toni , Stefanovska Jovana
Published: February 2018

Ehrlichia canis, the etiologic agent of canine monocytic ehrlichiosis (CME), is mainly transmitted by the brown dog tick Rhipicephalus sanguineus. Clinical signs of the disease can be various, depending on the stage of the disease. Typical changes in hematological and blood biochemical parameters are: severe thrombocytopenia, mild to marked non regenerative anaemia and hypoalbuminemia. In order to present the effects of the treatment protocol on several hematological and biochemistry parameters, 34 Ehrlichia canis positive dogs were compared before and after treatment with doxycycline 10mg/kg/day, in duration of four weeks. Besides the clinical sings and laboratory findings, diagnosis was confirmed by antibody tests (Bionote, Korea, AGROLABO S.p.A., Italy). The most common clinical sings were depression, lethargy, pyrexia, vomiting and anorexia. Hematological analyses were performed on the automatic hematology analyzer Exigo EosVet (Sweden), while biochemistry analyses (alanine aminotransferase, aspartate aminotransferase, urea, creatinine, albumin, total protein, globulin and alkaline phosphatase) were performed using the automatic analyzer ChemWell 2910 (Awareness Technology, INC, USA). Statistically significant difference (p<0.05) in hematology changes was present regarding the red blood cells count, platelet count, hematocrit and hemoglobin before and after treatment. Hypoalbuminaemia (Mean 19.21 ±4.96 g/l) was the only serum biochemistry parameter with significant change before and after treatment, as well. Treatment with doxycycline in patients with E.canis resulted in significant increase of hematology parameters (red blood cells, hemoglobin, haematocrit and platelets), as well as albumins in serum.
TINGGALAN ARKEOLOGI DI PURA PUSEH KIADAN, KECAMATAN PETANG, KABUPATEN BADUNG: KAJIAN BENTUK DAN FUNGSI
Authors: Suantika I Wayan
Published: February 2018

Puseh Kiadan is a temple which store many important archaeological remains. This study aimsto know the form and function of the archaeological remains. The data were collected througharchaeological survey, then analyzed using the methods of iconography, iconoclastic, iconometry, iconology, technology, and contextual. The result of this research are in the forms of ganesha, ancestor figurine, a yoni, and several plates of selonding traditional music instrument. From their forms, it is known that these remains came from Bali Madya period, which are still used as worshipping media by the villagers.Pura Puseh Kiadan merupakan pura yang menyimpan banyak tinggalan arkeologi, yang bernilaipenting. Tujuan penelitian ini adalah untuk mengetahui bentuk dan fungsi tinggalan arkeologidi pura tersebut. Data penelitian ini dikumpulkan melalui survei arkeologi, kemudian dianalisissecara ikonografi, ikonoklastik, ikonometri, ikonologi, teknologi dan kontekstual. Hasil penelitian ini berupa tiga buah arca Ganesa, arca Perwujudan, sebuah yoni dan beberapa bilah gamelan selonding. Berdasarkan bentukanya dapat diketahui bahwa tinggalan ini berasal dari periode Bali Madya, yang sejak dahulu sampai sekarang masih dimanfaatkan sebagai media pemujaan bagi masyarakat.
APLIKASI ADI PARWA DALAM RELIEF SITUS CANDI KIDAL
Authors: Tanjung Turaeni Ni Nyoman
Published: February 2018

Old Javanese literatures which are visualized into relief are in limited number few of them are the story of Partayadnya, Kunjarakarna, Arjuna Wiwaha, Adi Parwa and so on. This study aims to describe completely the structure and social phenomenon of Adi Parwa literature with wall relief at Kidal Temple Site. The analysis of this research describes descriptively with media changing approach, Adi Parwa literature into relief at Kidal temple. On the wall of Kidal Temple. There are three Garuda relief with different characteristic. All of those Garuda relief have close relation with parts of Adi Parwa.Karya sastra Jawa Kuno yang divisualisasikan ke dalam bentuk relief cerita jumlahnya sangat terbatas seperti Partayadnya, Kunjarakarna, Arjuna Wiwaha, Adi Parwa, dan lainya. Tujuannya adalah untuk mendeskripsikan secara lengkap fenomena struktural dan sosial dalam cerita Adi Parwa dengan relief Situs Candi Kidal. Metode yang digunakan dalam penelitian ini adalah teknik deskriptif analisis dengan pendekatan alih wahana, cerita Adi Parwa ke dalam relief Candi Kidal. Pada dinding Candi Kidal ditemukan tiga relief Garuda dengan laksana yang berbeda. Semua relief Garuda tersebut memiliki hubungan yang sangat erat dengan penggalan-penggalan cerita Adi Parwa.
PENGELOLAAN BUDIDAYA RUMPUT LAUT BERBASIS DAYA DUKUNG LINGKUNGAN PERAIRAN DI PESISIR KABUPATEN DOMPU, PROVINSI NUSA TENGGARA BARAT
Authors: Ramdhan Yulius M.
Published: February 2018

Rumput laut adalah alga makroskopik yang hidup di perairan, dan merupakan salah satu komoditas sumber daya pesisir dan laut cukup potensial karena memiliki nilai ekonomis yang tinggi, mudah dibudidayakan dan biaya produksi yang rendah. Perairan Kabupaten Dompu Provinsi Nusa Tenggara Barat (NTB) merupakan kawasan yang memiliki sumberdaya alam pesisir dan laut yang beraneka ragam, salah satunya dijadikan sebagai pengembangan budidaya rumput laut dengan jenis Eucheuma cottoni yang merupakan salah satu dari lima jenis rumput laut yang dimanfaatkan di Indonesia. Tujuan dari penelitian ini adalah untuk mengetahui wilayah kesesuaian perairan budidaya rumput laut di Kabupaten Dompu serta mengestimasi daya dukung lingkungan perairannya. Penelitian ini menggunakan metode spasial dan nilai daya dukung lingkungan perairan berdasarkan unsur nutrien N dan P karena kedua unsur tersebut memiliki pengaruh terhadap kelangsungan budidaya rumput laut. Hasil penelitian kesesuaian perairan budidaya rumput laut diperoleh luasan sesuai sekitar 72.515 Ha atau 99,49% dari luas total wilayah kawasan pengembangan. Hasil pendugaan daya dukung budidaya rumput laut longline untuk nilai produksi pada unsur N relative tinggi 0.7 ton/th, dengan masa panen selama 3-4 kali, dengan luas ruang perairan sebesar 15.219 Ha. Budidaya rumput laut yang telah dimanfaatkan saat ini seluas 500 Ha atau 3,3% dari total luasan daya dukung, sehingga luasan yang belum termanfaatkan seluas 14.719 Ha atau 66,7% dari total luasan daya dukung.

Kata kunci : pengelolaan budidaya, rumput laut, daya dukung, Kabupaten Dompu