bluuebunny/crossref_metadata_2025 huggingface dataset:
Scheduling distributed energy resources and smart buildings of a microgrid via multi‐time scale and model predictive control method
Authors: Jin Xiaolong , Jiang Tao , Mu Yunfei , Long Chao , Li Xue , Jia Hongjie , Li Zening
Published: October 2018

To schedule the distributed energy resources (DERs) and smart buildings of a microgrid in an optimal way and consider the uncertainties associated with forecasting data, a two‐stage scheduling framework is proposed in this study. In stage I, a day‐ahead dynamic optimal economic scheduling method is proposed to minimise the daily operating cost of the microgrid. In stage II, a model predictive control based intra‐hour adjustment method is proposed to reschedule the DERs and smart buildings to cope with the uncertainties. A virtual energy storage system is modelled and scheduled as a flexible unit using the inertia of building in both stages. The underlying electric network and the associated power flow and system operational constraints of the microgrid are considered in the proposed scheduling method. Numerical studies demonstrate that the proposed method can reduce the daily operating cost in stage I and smooth the fluctuations of the electric tie‐line power of the microgrid caused by the day‐ahead forecasting errors in stage II. Meanwhile, the fluctuations of the electric tie‐line power with the MPC based strategy are better smoothed compared with the traditional open‐loop and single‐period based optimisation methods, which demonstrates the better performance of the proposed scheduling method in a time‐varying context.
Accelerated translational motion compensation with contrast maximisation optimisation algorithm for inverse synthetic aperture radar imaging
Authors: Shao Shuai , Zhang Lei , Liu Hongwei , Zhou Yejian
Published: October 2018

Range alignment of traditional translational motion compensation for inverse synthetic aperture radar imaging generally cannot be implemented accurately under low signal‐to‐noise ratio, resulting in the following phase adjustment invalid. In this study, a novel accelerated translational motion compensation with contrast maximisation optimisation algorithm is proposed. Translational motion is first modelled as a parametric finite order polynomial. The translational motion property can be compactly expressed by a polynomial coefficient vector. Meanwhile, the image contrast is utilised to estimate the polynomial coefficient vector based on the maximum contrast optimisation, implemented by Broyden–Fletcher–Goldfarb–Shanno (BFGS) algorithm. BFGS is an effective quasi‐Newton algorithm, yielding fast convergence and small computational complexity. Moreover, a method called pseudo Akaike information criterion is also proposed to determine the polynomial order adaptively. Both simulated and real data experiments are provided for a clear demonstration of the proposed algorithm.
Comprehensive survey of the IoT open‐source OSs
Authors: Qutqut Mahmoud H. , Al‐Sakran Aya , Almasalha Fadi , Hassanein Hossam S.
Published: October 2018

The Internet of things (IoT) has attracted a great deal of research and industry attention recently and is envisaged to support diverse emerging domains including smart cities, health informatics, and smart sensory platforms. Operating system (OS) support for IoT plays a pivotal role in developing scalable and interoperable applications that are reliable and efficient. IoT is implemented by both high‐end and low‐end devices that require OSs. Recently, the authors have witnessed a diversity of OSs emerging into the IoT environment to facilitate IoT deployments and developments. In this study, they present a comprehensive overview of the common and existing open‐source OSs for IoT. Each OS is described in detail based on a set of designing and developmental aspects that they established. These aspects include architecture and kernel, programming model, scheduling, memory management, networking protocols support, simulator support, security, power consumption, and support for multimedia. They present a taxonomy of the current IoT open‐source OSs. The objective of this survey is to provide a well‐structured guide to developers and researchers to determine the most appropriate OS for each specific IoT devices/applications based on their functional and non‐functional requirements. They remark that this is the first such tutorial style paper on IoT OSs.
Revisiting the mass-luminosity relation with an effective temperature modifier
Authors: Wang Jifei , Zhong Zehao
Published: October 2018

The mass-luminosity relation (MLR) is commonly used to estimate the stellar mass. The classical MLR can hardly fit data of all the stellar mass range, thus researchers have generally adopted piecewise MLRs based on the classical MLR with different exponents for different mass ranges. However, varying turning points for the piecewise MLRs and for the exponent of each segment were used, and the estimated stellar masses are not always as good as those obtained by dynamical methods. We suggest an alternative way to improve the mass estimation accuracy: adding an effective temperature modifier to modify every segment MLR. We use a corresponding estimating equation for G- and K-type main-sequence stars, and verify this equation on two eclipsing binary catalogs. We compare the estimated results with those from a classical MLR and several piecewise MLRs. We find that the new estimates are significantly more accurate than those from the classical MLR and some piecewise MLRs, and they are not inferior to the stellar masses from other piecewise MLRs. This indicates that the temperature modifier can effectively help improve the estimation accuracy. In addition, we discuss the effect of adding the temperature modifier on the practicability of estimating stellar masses.
Optical and structural properties of curcuminoids extracted from Curcuma longa L. for hybrid white light diode
Authors: Al Shafouri M. , Ahmed Naser M. , Hassan Z. , Almessiere Munirah Abdullah , Jumaah Maadh
Published: October 2018

In this study, curcuminoids were extracted from turmeric (Curcuma longaL.) by means of three methods, comprising the normal method, use of Soxhlet apparatus and by combining the normal method with the Soxhlet extraction approach. The limitation of stickiness in the use of curcuminoids was resolved by mixing it with silica gel. The curcuminoids used light down-conversion of UV light (390 nm) for the white light-emitting diode (WLED). The characteristics of the white light chromaticity were controlled by changing the current and concentration of the curcuminoids. The chromaticity coordinates (CIE) and correlated color temperature (CCT) were measured for different applied currents (20, 60 and 100 mA) and weights (25, 35 and 50 mg) of curcuminoids. It was observed from the concentration of phosphor that the combination of the normal and Soxhlet apparatus methods is most effective extraction approach. The results showed that increasing the concentration of phosphor significantly and remarkably increased the value of CCT when different values of current were applied. The stress test showed that the prolongation of dye degradation can be improved using air gap and glass slid, with air gap being more effective. An optimum color rendering index (CRI) value of 61.2 is obtained. The white phosphor exhibited CIE values of 0.333, 0.3151 and color temperature (CCT) of 5405 K.
Smart grids: enabler for the energy transition
Authors: Moneta Diana
Published: October 2018

This paper deals with the concept of “smart grids”. Starting from drivers behind the evolution of the power system, an overview of elements and technologies is given: smart grids have to intelligently integrate the actions of all users connected to it — generators, consumers and those that do both — in order to efficiently deliver sustainable, economic and secure electricity supplies. Examples of solutions from demonstration projects represent the base for discussing methodologies to estimate benefits deriving from smart grid solutions, showing how conflicting goals cannot always be fulfilled simultaneously. Finally, future perspectives are discussed: the main thinking regards the awaited pivot role for customers, in the future scenario with an increased utilization of electricity combined with a high penetration of non-programmable resources.
Energy from nuclear fission
Authors: Ripani M.
Published: October 2018

The main features of nuclear fission as a physical phenomenon will be revisited, emphasizing its peculiarities with respect to other nuclear reactions. Some basic concepts underlying the operation of nuclear reactors and the main types of reactors will be illustrated, including fast reactors, showing the most important differences among them. The nuclear cycle and radioactive nuclear waste production will be also discussed, along with the perspectives offered by next-generation nuclear assemblies being proposed. The current situation of nuclear power in the world, its role in reducing carbon emission and the available resources will be briefly illustrated.
Energy intensitites, EROI (energy returned on invested), for electric energy sources
Authors: Weissbach D. , Herrmann F. , Ruprecht G. , Huke A. , Czerski K. , Gottlieb S. , Hussein A.
Published: October 2018

The EROI (Energy Returned On Invested) has been calculated for various systems, especially power plants, applying several different methodologies. This quantity is often used as an argument in discussions about economics to emphasize the performance of a certain technology. Contrary to that, the publications often answer different questions,e.g.analyses of emissions or material flows, rendering the EROI unphysical. The present work introduces a physical approach based on exergy flows for EROI calculation to pinpoint and compare the efficiency of different power plant technologies.
Modelling the material and energy costs of the transition to low-carbon energy
Authors: Vidal Olivier , Le Boulzec Hugo , François Cyril
Published: October 2018

The evolution from 2000 to 2050 of the needs in concrete, steel, aluminium and copper to build the infrastructure of electricity generation is modelled for the scenarios of García-Olivares et al. (2012), Ecofys-WWF (2012) and the blue map scenario of the IEA (2010). A simple dynamic model is used to estimate the primary production, recycling and lost flows as well as the cumulative stocks of material to be produced, to go into the infrastructure and to be lost. The energy of material production is also estimated. When compared with the expected evolution of global material and energy demands, the modelling results suggest that i) the transition to low-carbon energies implies a substantial increase of raw materials and energy consumption, ii) the shorter lifetime of wind and solar facilities and the loss of recycling implies that the total amount of metal to be produced during the deployment of the infrastructure of energy is significantly higher than their amount stocked in the infrastructure, and iii) the needs in materials and energy will occur in a period of expected increase of primary metal consumption at the world scale and limited potential of recycling
Elevated water temperature impairs gamete production in male narrow-clawed crayfish Pontastacus leptodactylus (Eschscholtz, 1823)
Authors: Farhadi Ardavan , Harlıoglu Muzaffer Mustafa
Published: October 2018

Water temperature is one of the major environmental factors affecting the reproductive output of freshwater crayfish. The reproduction of freshwater crayfish only occurs in a limited water temperature range and minor changes in water temperature could have negative impacts on this biological process. Therefore, understanding the potential effects of temperature on the reproductive output of crayfish is important from both an ecological and aquaculture point of view. Spermatozoal production, hepatosomatic index (HSI), gonado-somatic index (GSI), testicular index (TI), and vas deferens index (VDI) were measured in Pontastacus leptodactylus maintained at 7.5, 11, and 19 °C during the reproductive season. It was found that the highest temperature significantly degrades the production of spermatozoa and VDI when compared to the crayfish maintained at lower temperatures (P < 0.05). On the other hand, water temperature did not significantly affect the values of HSI, GSI, and TI (P > 0.05). Furthermore, the highest temperature caused a negative impact on the vas deferens characterized by a softer and more adhesive texture. In conclusion, this study demonstrated that elevated water temperature has a negative impact on gamete production of male P. leptodactylus, as a cold water crayfish species, and may subsequently affect the whole reproduction process.
Three-dimensional simulation of combustion, detonation and deflagration to detonation transition processes
Authors: Smirnov Nickolay , Nikitin Valeriy
Published: October 2018

The paper presents results of numerical and experimental investigation of mixture ignition and detonation onset in shock wave reflected from inside a wedge. Contrary to existing opinion of shock wave focusing being the mechanism for detonation onset in reflection from a wedge or cone, it was demonstrated that along with the main scenario there exists a transient one, under which focusing causes ignition and successive flame acceleration bringing to detonation onset far behind the reflected shock wave. Several different flow scenarios manifest in reflection of shock waves all being dependent on incident shock wave intensity: reflecting of shock wave with lagging behind combustion zone, formation of detonation wave in reflection and focusing, and intermediate transient regimes. Comparison of numerical and experimental results made it possible to validate the developed 3-D transient mathematical model of chemically reacting gas mixture flows incorporating hydrogen – air mixtures.
Plasma vortex reactor for production of heat energy and hydrogen
Authors: Klimov Anatolii , Kurushina Svetlana , Molevich Nonna , Porfiriev Denis , Zaversinskii Igor
Published: October 2018

Numerical simulation of the turbulent three-dimensional swirling flow structure in plasma vortex reactor is conducted. Flow and set up parameters correspond to the experimental conditions. Flow velocity and thermal fields have been obtained. A qualitative agreement between the results of the calculations and the experimental data for pure argon has been shown.
Effect of secondary swirl in supersonic gas and plasma flows in the self-vacuuming vortex tube
Authors: Volov Vyacheslav , Lyaskin Anton
Published: October 2018

This article presents the results of simulation for a special type of vortex tubes – self-vacuuming vortex tube (SVT), for which extreme values of temperature separation and pressure drop are realized. The main results of this study are the flow structure in the SVT and energy loss estimations on oblique shock waves, gas friction, instant expansion and organization of vortex bundles in SVT.
Experimental investigation of a gel fuel combustion process initiated by a hot particle
Authors: Nigay Aleksandr , Glushkov Dmitriy
Published: October 2018

Experimental studies were performed for crude oil-based fuel samples. The initial temperature of the samples varied down to 120 K. Ignition was performed by single metal particles of various shapes and temperatures, which reached 1350 K. A specially developed experimental setup allowed recording of the proceeding processes at a high speed. As a result, the characteristics of physical and chemical processes were analysed. Conditions necessary for stable ignition and ignition delay times were determined depending on various conditions.
Three activities to promote the development of standard professionals
Authors: Eto Manabu
Published: October 2018

I was involved in three projects to educate standard professionals in 2017. The first was conducted for first through third-year university students as a part of standardization education in collaboration with several universities in the west Tokyo area, and many students participated. In the second, the Japan Standards Association began a system for registering standard professionals, and prepared and implemented a training system for acquiring registration qualifications. In the third, Yamaguchi University used government funds to create education materials for instructors for standardization education. These three projects are aimed at solving the problems found in past standard professionals’ education. I will report the details of these three projects as a case example of standard professionals’ development activities in Japan.
Food Safety System Design Using Hazard Analysis Critical Control Point (HACCP) on Beverage Product X at a Milk Tea Producer
Authors: Ajidarma Praditya , Islamiaty Muthya , Hasby Fariz , Irianto Dradjad
Published: October 2018

Food safety is a primary concern in food industry. Hazard Analysis Critical Control Point (HACCP) is a systematic preventive approach that aims to ensure food safety in a comprehensive manner, starting from raw material retrieval from supplier, production phase, up to the distribution to end consumers. Furthermore, the approach is capable of reducing risks associated with food hazard to their acceptable level. Our research took place in a company that produces a wide array of milk tea with a variety of flavours, i.e. product X. Recent increase in overall demand and competitors in Indonesian milk tea market subsequently forces the company to pay more attention to the quality of their product X. Thus, the company aspires to certify its food safety system and management. This research proposes a design and implementation plan of HACCP for quality assurance and food safety of product X. The main outcomes of this research are the HACCP plan for raw material, packaging material, and production process. Further potential improvements are suggested with regard to production process, production equipment, production layout, human resource, sanitation, and documentation system. The HACCP plan consists of ten Critical Control Points (CCPs), a series of documentation forms, and additional documents specifically attributed to support the implementation phase of HACCP plan.
Effectiveness analysis of ISO 9001:2015 implementation at manufacturing industry
Authors: Ahmudi  , Purwanggono Bambang , Utami Handayani Naniek
Published: October 2018

Globalization era requires many companies to improve service quality and resource management capabilities in order to gennerate public confidence in the products and commitments offered. The quality improvement program is contained in Quality Management System (QMS). QMS is developed in ISO 9001 standart certification.ISO 9001 is a standard that contains quality management system requirements issued by the International Organization for standarization (IOS). Companies that become the obyect of research is PT Sejahtera, this company is engaged in manufacturing.the company suffered several losses in the form of withdrawal of order from customer. Besides that happened also complaint from customer will product which yield not according to standard which have been approved. This research aims to evaluate the effectiveness of ISO 9001: 2015 implementation at PT. Sejahtera. The method used is Gap Analysis. Calculations on gap analysis use checklists made based on requirements of ISO 9001: 2015.the result of calculation using checklist will show how big the effectiveness of PT. Sejahtera in implementing ISO 9001: 2015
Analysis of OHSAS 18001: 2007 standard renewal towards ISO 45001: 2018 at PT. Power Plant Indonesia by using gap analysis method
Authors: Yahya Ramy , Utami Handayani Naniek , Purwanggono Bambang
Published: October 2018

The research aimed to understand the current condition of PT. Power Plant Indonesia by evaluating its OHSAS 18001:2007 certification and its preparedness for ISO 45001:2018 certification. Method used for data analysis was gap analysis. Calculation in gap analysis used a checklist compiled according to the requirements listed in OHSAS 18001:2007. Results of the checklist showed that the general requirements clause averaged at 93.88%, health & safety policy clause at 93.97%, planning clause at 92.91%, implementation & operation clause at 91.85%, checking clause at 92.32%, management review clause at 91.85%, and overall score measured against OHSAS 18001:2007 at 92.85%. With the similarities between the points of clauses in OHSAS 18001:2007 and in ISO 45001, the large overall score when measured against OHSAS 18001:2007 signified that the company was prepared for ISO 45001:2018 certification.
Analysis of customer satisfaction to quality of service using Importance Performance Analysis (IPA) on PT. Telekomunikasi Indonesia. (Case study Telkom Divre IV Central Java & Yogyakarta)
Authors: Widyasrini Arlita Rahma , Puspitasari Nia Budi
Published: October 2018

PT. Telekomunikasi Indonesia, Tbk. (PT.Telkom) always serve to provide the best service to customers. Analysis of company performance based on customer satisfaction with the results of research can be done service improvements that are not in accordance with customer expectations and foster customer loyalty and improve the competitiveness of the company PT. Telkom Divre IV Central Java & Yogyakarta. The number of fast subscribers for the 201X period is 252,946 calls. Total quantity of product in Semarang if compared to quantity, if in the long term can cause customer dissatisfaction which resulted the change of customer to company, hence needed analysis which aim for service quality, service quality service analysis perceived by customer, and analysis the level of customer satisfaction PT. Telkom Divre IV Central Java & Yogyakarta. The method used in measuring consumer satisfaction is the method of Importance Performance Analysis (IPA), comparing the expectation of customers with the performance of the company. The use of IPA methods can identify attributes with poor and existing performance from users, and determine the steps of important attributes that still have poor performance, thus the results of the study provide recommendations to PT. Telkom Divre IV Central Java & Yogyakarta.
Assesing the Electronic Service Quality using E-S-Qual and Importance Performance Analysis Combined Method
Authors: Utami Handayani Naniek , Tri Wibowo Agus , Puspita Sari Diana
Published: October 2018

Internet is an integral part of any service provider activity which serve millions of users with variety of needs throughout the world. The function of internet is widely used and adapted by companies providing services in the form of business transactions, electronically or by means of e - commerce. The quality of service provided is vital to each company’s success. This case study was conducted in one of the biggest companies engaged in Indonesia’s online shopping business: LAZADA. Assessing the quality of electronic services provided by LAZADA using a combination of E - S - Qual and IPA methods to know the quality of services provided by LAZADA and how customer perceive LAZADA’s service. The result of this study procured E - S - Qual value as 2.5 out of a scale of 5, which shows that a lot of things can still be explored by LAZADA in providing services for the customers. Perceptions or expectations of the customers that have not been fulfilled in LAZADA’s service delivery are: appropriate duration of delivery, the certainty of the number of goods ready for shipment, and out of stock items.
Design and analysis of trapezoidal bucket excavator for backhoe
Authors: Hadi Sumar , Bayuseno  , Jamari  , Muhamad Andika Rachmat , Chamid Kurnia
Published: October 2018

Excavator is the most multifunction heavy tool because it can handle other heavy tool such as sloping, dumptruck loading, and breaker. Usually, when doing excavation there is always possibility of breaking of pin in tooth adapter. The aim of this paper is designing bucket excavator using SOLIDWORK 2016 software and doing analysis with ANSYS R15.0 software using finite element analysis (FEA) method. This paper emphasize about the development that is done in the tip of excavator bucket teeth based on the calculation and ANSYS simulation with maximum shear stress result which is in the amount of 50,437 Mpa with maximum deformation level is being found at the part of excavator bucket head.
Evaluation of conventional standards of nickel electroplating process for surface finish layer of AISI 316L stainless steel using copper rod bars as cathode
Authors: Munyensanga Patrick , Widyanto Susilo A. , Aziz Moh N.A. , Paryanto
Published: October 2018

Nickel electroplating process at UD Barito Electroplating is a modern methodology installed in an open complex environment and at controlled temperature with trust consideration of specimen composition. The evaluation of process at UD Barito has been undertaken by considering Stainless steel AISI 316L as specimen through a conventional nickel electroplating process. This paper presents the proper scientifically tool to be used at UD Barito in order to meet the time required and the surface layer quality of the electroplated product. The use of ultrasonic to replace air compressor assembly does not cause any harm to the surface finish smoothness and the quality of plated specimen given that the process is conventional. Concerning the process of 10 min compared up to 15 min of the process at UD Barito; showed the facility of ultrasonic assisted the electroplating process. This process is also a useful method in maintenance activities for surface cleaning and for product surface-layer quality enhancement through the coating process. From the data analyzed, the specimen has a hydrogen embrittlement rate range between 20 to 65% of Rockwell scale HRC52.
Analysis of the cause of the defect packaging of capsule products using six sigma: A case study (PT SM)
Authors: Fidiyanti Finsaria , Susanto Novie
Published: October 2018

This research aims to manage the amount of defective packaging of capsule products in the department of capsule product at PT SM. It is important because the number of defective packaging of capsule products is high and exceeds the limits of maximum, i.e. 5% of the total production. In addition, the defective packaging of capsule products cannot be reworked and will cause losses in terms of time and finances. This research uses the Six Sigma method to find out the capabilities of the production process from the defective packaging of capsule products. Application of the method of Six Sigma through DMAIC process to eliminate the number of defective products and Fishbone diagram is used to identify the cause of the defect and provide recommendations on improvements to the production process. The data for this research is the amount of production, defective packaging of capsule products and interviews with the department of quality control, department of capsule product and operator. Data processing using Six Sigma methods showed that the value of sigma is 3.41σ with the number of DPMO is 27,951.202. Using Fishbone diagram, there are 9 causes of the defective packaging of capsule products.
Principle of generator HHO hybrid multistack type production technologies to increase HHO gas volume
Authors: Sudrajat Ajat , Mayfa Handayani Eva , Tamaldin Noreffendy , Kamal Mat Yamin Ahmad
Published: October 2018

Hydrogen isclassified as New Energy and also considered as the most promising transportation fuel candidate in the future. Various pilots test of hydrogen fuel cell vehicles by the world's leading automotive industries since the last 50 years have begun to show bright spot in the utilization of hydrogen-based fuel cells as vehicle fuel. The electrolysis process of water (H2O) would produce H2 (hydrogen) and O2 (oxygen). The conventional method resulted in inconsistent volume and quality of HHO gas. However, the current development of HHO gas production through electrolysis process varies in term of materials, production process, design of certain tools, and technical modifications to obtain optimum results. In this research, the Hybrid Multistack TypeHHO generator has been designed and developed by combining two types of dry and wet cell generators. In this study using both cell type generator (wet and dry cell) or called as a hybrid type. Through the process of electrolysis in HHO enclosure space, the HHO gas was produced. The volume of HHO gas obtained from the HHO generator as an alternative fuel is strongly influenced by the electrical current supplied and the concentration of KOH catalyst used. The test was conducted with four stages of catalyst amount from 5.6g/L; 11.2g/L; 16.8g/L; and 22.4g/L. The applied current is linearly increased, with the increasing HHO gas production. It is proven when with the amount of catalyst used at 22.4g/L, the average HHO gas produced is 230.3mL/min. The author analyzes the performance of the generator in term of current and HHO gas production at a predetermined 12V constant voltage.
Mental workload of undergraduate student (a case study in Industrial Engineering Department of Diponegoro University)
Authors: Prastawa Heru , Susanto Novie , Nofri Try
Published: October 2018

High competition in the era of globalization requires repair and improvement over all of the academic community in Indonesia, including the students. This makes the students compete in their studies and potentially cause mental studyload which could have implications for many things. This study aims to determine the level of mental load among the students of the Department of Industrial Engineering Undip in semesters 3 and 5 using the NASA-TLX, with respondents as many as 50 students. In addition, this study try to find out the NASA-TLX’s dominant scale perceived by students and trying to prove, whether external factors such as previous semester grade point, study hours per day, entrance selection exam and free-time activities affect the score of mental load or not. The results of the mental study load measurement shows that the average score of mental study load of 80.04 (ponderable). For the dominant scale, the scale is Temporal Demand. Analysis of Variance (ANOVA) for external factors indicate that these factors do not have a significant influence on the existing score of the mental study load.
Evaluation of advertisement existence toward attention and understanding level vehicle driver
Authors: Budiawan Wiwik , Bachtiar Arfan , Afriyanti Veronica Desy
Published: October 2018

When driving on the road many things can draw attention of the main task for driving, for example advertisement. The success of an advertising depends on how well it was able to communicate with the target properly. Information processing consisting of the perception process, organizing, and remembering of receiving information. This study tries to assess four-wheel drive behaviour when he saw advertisement on the road using The Eye Tracking method to know Allocation Time of Visual Spare Capacity, Attention Level and Understanding Level driver’s. From 20 people who are respondents only 15 respondents have seen advertisement displayed and obtained research results that while driving, drivers have allocation of time of 6,52 second or 3,78 % of the whole long drive duration. With a small percentage, the attention of driver had low results seen from the perspective of eye integration for the advertisement. In this research also known that images and colour are easier to remember compared with the number of pictures displayed. So, the cognitive recommendation that can be given are the minimum distance between advertisement of 890 meters, Maximum element in advertisement contain 8 elements, Using the dark background in light coloured or otherwise, avoid several colours that hard to read if put together and Using Uppercase or Lowercase Font Style.
Quality management system design of vocational services in PM College based on ISO 9001:2015
Authors: Gisela Napitupulu Karina , Mi’radj Isnaini Mohammad , Irianto Dradjad
Published: October 2018

Vocational college institution has a substantial contribution to support the development of industrial human resources in Indonesia. PM College as one the reputable vocational college provides educational services for students and training services for industry employees. PM College has a focus to provide customer satisfaction. PM College’s customers consist of industries mainly from manufacturing businesses. To guarantee the educational process, PM College has been applying the quality management system based on ISO 9001:2008. The current challenge of the PM College is to apply the latest ISO 9001: 2015 which is a revision of the previous version standard. ISO 9001: 2015 has some changes made as a form of adjustment. The institution feels the need to make improvements to the current quality management system to provide the satisfaction to customers, both from the industry and university students and to compete with the other polytechnic as well. This paper proposes an approach to prepare and analyze the organization in fulfilling the requirements of ISO 9001:2015. Several data processing and analysis were conducted to identify clauses’ fulfillment between activity and document of the organization in meeting the ISO 9001:2015. The results of data processing and analysis show that PM College needs to make improvements in business processes and has not met ten clause requirements of ISO 9001:2015. Several adjustments were proposed to the business process and ten clauses to assist PM College in preparing the ISO 9001:2015 certification.
Regulation des Knochenstoffwechsels durch den Wnt-Signalweg
Authors: Houschyar K.S. , Tapking C. , Duscher D. , Harati K. , Wallner C. , Wagner J.M. , Maan Z.N. , Rein S. , Chelliah M.P. , Reumuth G. , Grieb G. , Siemers F. , Lehnhardt M. , Behr B.
Published: October 2018

Die Entwicklung und Homöostase von multizellulären Organismen hängt von einem komplexen zellulären Zusammenspiel zwischen Proliferation, Migration,
Differenzierung, Adhäsion und Zelltod ab. Die Wnt-Signalwege spielen für die Koordination dieser verschiedenen zellulären Antworten eine wichtige Rolle,
insbesondere als regulatorischer Weg bei der osteogenen Differenzierung von mesenchymalen Stammzellen. Der Wnt-Signalweg ist ein attraktives therapeutisches
Ziel mit dem Potenzial, Stammzellen, die für die Regeneration des Skelettgewebes verantwortlich sind, direkt zu modulieren. Neuere Untersuchungen zeigen, dass
Wnt-Liganden in der Lage sind, das Knochenwachstum zu fördern, was nahe legt, dass Wnt-Faktoren zur Stimulation der Knochenheilung bei osteogenen Störungen
verwendet werden könnten.
Inpatient Rehabilitation for Children and Adolescents With Diabetes
in Germany Between 2006 and 2013
Authors: Auzanneau Marie , Bohn Barbara , Schiel Ralf , Stachow Rainer , Koch Sibylle , Hermann Thomas , Holl Reinhard W.
Published: October 2018

Introduction In Germany, inpatient rehabilitation is a
well-established additive option in the therapeutic concept for children and
adolescents with diabetes. However, its contribution in pediatric diabetes
care is not known exactly. Our objective was to analyze inpatient
rehabilitation in pediatric diabetes over eight years in Germany.

Methods We requested secondary data from the German Statutory Pension
Insurance Scheme to evaluate all completed inpatient rehabilitations for
children and adolescents with diabetes (ICD-code E10-14) reimbursed by this
institution between 2006 and 2013. For each type of diabetes, we analyzed
the distribution of admissions by year, age-group, sex, nationality, and
other documented diagnoses. All analyses were conducted via remote computing
with IBM SPSS Version 24.

Results Between 2006 and 2013, 5,403 admissions to inpatient
rehabilitation for 4,746 children and adolescents with diabetes were
documented. For type 1 diabetes (T1D; 88.5% of admissions), the
number of yearly admissions increased from 458 in 2006 to 688 in 2013
(p=0.013), especially for age-group>5-10. The increase for
type 2 diabetes (T2D) was not significant. Admissions were more frequent for
girls (53.6%, p≤0.001), age>10-15 years
(42.8%, p=0.001), and German nationality (98.5%).
Obesity (T1D: 11.1%; T2D: 87.9%) and mental disorders (T1D:
11.6%; T2D: 27.4%) were the most frequent documented
diagnoses in addition to diabetes.

Conclusion This study provides a comprehensive overview of inpatient
rehabilitation for children and adolescents with diabetes over many years in
Germany. Until 2013, inpatient rehabilitation remained important in
pediatric diabetes care, especially for children with mental disorders or
obesity.
Stereoselective Synthesis of Tetrahydrofuran Lignans
Authors: Soorukram Darunee , Pohmakotr Manat , Kuhakarn Chutima , Reutrakul Vichai
Published: October 2018

This short review aims to summarize the reports on stereoselective synthesis of naturally occurring tetrahydrofuran lignans published during the period of 2006 to 2018. The stereoselective construction of non-natural tetrahydrofuran frameworks is not included in this review.

1 Introduction

2 Stereoselective Synthesis of 2,5-Diaryltetrahydrofuran (CL5-a)

2.1 Synthesis of CL5-a via Friedel–Crafts Arylation or Nucleophilic Addition/Reduction of γ-Butyrolactones

2.2 Synthesis of CL5-a via Intramolecular Cyclization of 1,4-Diaryl­butanediols

2.3 Synthesis of CL5-a via Diastereoselective Hydrogenation of Furan Derivatives

2.4 Synthesis of CL5-a via Cycloaddition Reaction of Substituted Cyclopropane­ Derivatives

3 Stereoselective Synthesis of 2-Aryl-4-benzyltetrahydrofuran (CL5-b)

4 Stereoselective Synthesis of 3,4-Dibenzyltetrahydrofuran (CL5-c)

5 Conclusions
Iridium-Catalyzed Direct Cyclization of Aromatic Amines with Diols
Authors: Minakawa Maki , Watanabe Kouichi , Toyoda Satoru , Uozumi Yasuhiro
Published: October 2018

We developed an environmentally friendly iridium-catalyzed direct cyclization of aromatic amines with diols that generates the corresponding N-heterocyclic compounds with water as the sole by-product. Thus, under conditions of 165 °C for 18 hours, the direct cyclization of N-methylanilines with 1,3-propanediol by using an IrCl3 catalyst with rac-BINAP as a ligand in mesitylene afforded the corresponding tetrahydroquinoline derivatives with yields ranging from 73 to 83%. ­Under similar reaction conditions, direct cyclization of anilines with 1,3-propanediol produced the corresponding tetrahydrobenzoquinolizine derivatives with yields ranging from 26 to 76%.
Synthesis of 1,3-Azol-2-yl O-Heterocycles by Microwave-Irradiation-Assisted Direct C–H Functionalization
Authors: Kónya Krisztina , Sipos Zoltán
Published: October 2018

A microwave-irradiation-assisted synthesis of novel 1,3-azol-2-yl-substituted O-heterocycles, namely flavones, chromones, coumarins, and chromanones, is reported. Starting from the appropriate bromo derivatives and 1,3-azoles, this palladium and copper co-catalyzed method provides moderate to good yields and excellent regioselectivity. The ligand- and base-free method can be a useful, generally applicable synthetic tool in the formation of new O-heterocycles.
Catheter-Based Computed Tomography Angiography in Anterolateral Thigh Perforator Mapping of Chinese Patients
Authors: Wang Zhongjie , He Jiqiang , Qing Liming , Zhou Zhengbing , Zhang Youming , Zhu Zhiming , Zhou Chunhui , Xie Hui , Li Xuejun , Zee Chishing , Chen Bihong , Yi Xiaoping
Published: October 2018

Background During reconstructive surgery, anterolateral thigh (ALT) flap harvest is challenging due to variation and uncertainty in perforator distribution. We performed a pilot study to identify the predictive value of catheter-based computed tomography angiography (C-CTA) and traditional CTA (T-CTA) in ALT perforator mapping for patients whose ALT perforators were difficult to identify.

Methods Thirty-four consecutive T-CTA/C-CTA-mapped ALT flaps were evaluated for extremity reconstruction. The perforator location, origin, and course were compared between T-CTA/C-CTA imaging and intraoperative findings. The mapping efficiency of T-CTA and C-CTA was compared thoroughly.

Results Among the 34 ALT thigh flaps, 117 (36) of the 130 perforators identified intraoperatively were visible on C-CTA (T-CTA) in a subgroup of Chinese limb trauma patients with limited activity. C-CTA showed a satisfactory efficiency in perforator mapping, which was much better than the efficiency of T-CTA. C-CTA also showed a much better sensitivity (90.00 vs. 27.69%), specificity (94.74 vs. 66.67%), and accuracy (91.07 vs. 36.69%), and a much lower false-positive (1.68 vs. 26.53%), and false-negative rate (10.00 vs. 72.31%). Moreover, C-CTA could accurately predict the origin and septocutaneous or intramuscular course in all identified perforators. All flaps were elevated successfully and survived.

Conclusion C-CTA outperforms T-CTA in the preoperative perforator mapping of ALT flaps in a subgroup of Chinese limb trauma patients. C-CTA should be the method of choice for perforator mapping in patients whose ALT flaps are intended for extremity reconstruction.
Global Health – Zukunftsfeld der Physiotherapie
Authors: Barth Cornelia A.
Published: October 2018

Cornelia A. Barth ist Physiotherapeutin mit jahrelanger internationaler Erfahrung im Bereich der humanitären Hilfe und Entwicklungszusammenarbeit. Die Situation
von Menschen mit Behinderung sowie der Mangel an Ressourcen in vielen Teilen der Welt veranlassten sie, sich mit globalen Konzepten auseinanderzusetzen. Sie
sagt: „Es wäre wünschenswert, wenn künftig der Global-Health-Gedanke vermehrt Einzug in Physiotherapie-Curricula, professionelle Diskussionen und
Forschungsprojekte fände.“
Accurate double excitations from ensemble density functional calculations
Authors: Sagredo Francisca , Burke Kieron
Published: October 2018

The recent use of a new ensemble in density functional theory (DFT) to produce direct corrections to the Kohn-Sham transitions yields the elusive double excitations that are missed by time-dependent DFT (TDDFT) with the standard adiabatic approximation. But accuracies are lower than for single excitations, and formal arguments about TDDFT suggest that a correction kernel is needed. In principle, ensemble DFT with direct corrections at the exchange level must yield accurate doubles in the weakly correlated limit. We illustrate with exact calculations and analytic results on the Hubbard dimer. We also explain the error in formal arguments in TDDFT.
Adsorption and phase behavior of water-like fluid models with square-well attraction and site-site association in slit-like pores: Density functional approach
Authors: Trejos Víctor M. , Sokołowski Stefan , Pizio Orest
Published: October 2018

The adsorption and phase behavior of two model fluids, both with square well inter-particle attraction and site-site associative interaction, in slit-like pores have been studied in the framework of a density functional theory. The mean field approach and the first-order mean spherical approximation have been applied to account for the attractive interactions. The chemical association effects are taken into account by using the first-order thermodynamic perturbation theory of Wertheim. A set of parameters for each fluid model has been chosen according to the work of [Clark et al., Mol. Phys. 104, 3561 (2006)], to describe successfully the vapor-liquid coexistence of water in the bulk phase. The influence of the slit-like pore width and of the strength of gas-solid interaction energy on the vapor-liquid coexistence envelope under confinement has been explored in detail. The theory and the results of the present work are valuable for further exploration of a wide set of models of associating fluids and of fluids with complex molecular architecture in different adsorbents, and to deal with activated carbon surfaces.
Spin-polarized and thermospin-polarized transport properties of phthalocyanine dimer based molecular junction with different transition metal atoms
Authors: Zhao P. , Chen G.
Published: October 2018

Based on the first-principles density functional theory combined with the non-equilibrium Green’s function method, we have studied the spin-polarized and thermospin-polarized transport properties of phthalocyanine (Pc) dimer based molecular junction with different transition metal (TM = Mn, Fe, Co, Ni) atoms. Our results show that the spin-polarized and thermospin-polarized transport properties can be effectively tuned by changing the central TM atoms, and only the MnPc dimer system exhibits perfect spin/thermal-spin filtering and sizeable giant magnetoresistance (GMR)/thermal-GMR effects. Meantime, the MnPc dimer system reveals a low-bias negative differential resistance effect under the parallel magnetic configuration. These findings suggest that the MnPc dimer system has great potential in developing the high-performance multifunctional spintronic and spin caloritronic devices.
Accurate and efficient numerical simulation of dielectrically anisotropic particles
Authors: Wu Huanxin , Luijten Erik
Published: October 2018

A variety of electrostatic phenomena, including the structure of electric double layers and the aggregation of charged colloids and proteins, are affected by nonuniform electric permittivity. These effects are frequently ignored in analytical and computational studies and particularly difficult to handle in situations where multiple dielectric contrasts are present, such as in colloids that are heterogeneous in permittivity. We present an extension to the Iterative Dielectric Solver developed by Barros and Luijten [Phys. Rev. Lett. 113, 017801 (2014)] that makes it possible to accurately compute the polarization of anisotropic particles with multiple dielectric contrasts. This efficient boundary-element-method-based approach is applicable to geometries that are not amenable to other solvers, opening the possibility of studying collective phenomena of dielectrically anisotropic particles. We provide insight into the underlying physical reasons for this efficiency.
Accurate electron affinity of Ti and fine structures of its anions
Authors: Tang Rulin , Fu Xiaoxi , Ning Chuangang
Published: October 2018

The high-resolution photoelectron energy spectra of atomic titanium and its hydride anions were obtained on a slow-electron velocity-map imaging spectrometer equipped with a cold ion trap. The cold ion trap employed in the present measurement was found to be very helpful for reducing the interference from the titanium hydride anions. The electron affinity of Ti was determined to be 609.29(34) cm−1 or 75.54(4) meV. The accuracy was improved by a factor of 350 compared with the previous result. The fine structures of Ti− were clearly resolved: 70.0(12)(4F5/2), 165.2(15)(4F7/2), and 285.2(15) cm−1 (4F9/2) above its ground state 4F3/2. Moreover, the measured electron affinity and vibrational frequency of TiH can be reproduced well using the high level calculations.