bluuebunny/crossref_metadata_2025 huggingface dataset:
Utilization of Hermetia illucens Larvae as A Bioconversion Agent to Reduce Organic Waste
Authors: Fadhillah N , Bagastyo A Y
Published: June 2020

The larvae of Hermetia illucens, known as Black Soldier Fly (BSF), are utilized to reduce various types of organic waste by means of bioconversion. The purpose of this study was to evaluate the efficiency of the larvae in reducing and converting mixtures of fresh food waste (FW) with other organic waste types, i.e., immature windrow composting material (IW), residue windrow composting material (RW), and fresh cow manure (CM) at three different composition ratios. The growth rate and protein content of the larvae were also determined in this study. A specific amount of organic waste mixtures was fed to the BSF larvae. The results suggest that the type of organic waste given to larvae affected the overall waste reduction and larval growth at a certain extent. The composition ratio of FW with the other wastes used was 90:10, 70:30, and 60:40 (w/w). The highest reduction percentage was at the ratio of 90:10 achieved for FW mixed with IW, FW mixed with RW, and FW mixed with CM, i.e. 82.2%, 79%, and 74.5% respectively. The protein content of larvae in those waste mixtures was 54.6%, 63.1%, and 48.75% respectively. The final residue from the decomposition of the waste by BSF larvae was also observed in this study.
Adsorption of Fe3+ ion from Aqueous Solution onto Rice Husk Biocomposite Magnetic Nanoparticle
Authors: Nata I F , Mirwan A , Wicakso D R , Irawan C , Isnaini M D , Fitriani R
Published: June 2020

Rice husk (RH), an agricultural waste, is abundantly available in South Kalimantan. RH has been recycled only for low-value application, although rice husk has the potential to be used as natural fiber. The aim of this research is to produce an adsorbent based on rice husk fiber (RHF) and magnetic nanoparticles (MNPs) and study its performance on Fe3+ ion adsorption, effect on total suspended solid (TSS) and color adsorption. Rice husk was dried (60 mesh), then run through delignification process to eliminate lignin using 1% of NaOH. Rice husk biocomposite (RHB) was produced using a one-pot solvothermal reaction in the presence of RHF and FeCl3⋅6H2O. The surface of RHB was modified by amine group (RBH-MH). As control, the RBH without modification was also produced (RHB-M). The optimum adsorption was reached at pH 5 in a 60-minute period and adsorption capacity for RHB-M and RHB-MH reached 47.63 and 52.46 mg/g, respectively. The RHB-MH also had the capability to adsorb TSS and color, where approximately 87.5% of TSS and 85.81% of color were reduced. Regarding its reusability, the RHB-MH showed a good performance in 4 repeated uses. The addition of amine on the biocomposite may have affected the adsorbent by enhancing its adsorption capacity, reduced TSS and color for reactivity toward a wide range of organic pollutant.
Potential of Low Cost Sensor Usage for Waste Water IOT System
Authors: Telaga A S , Goffar E A , Sarfat W
Published: June 2020

Mining industry is one of the industries that require huge amount of water. 1 tonne of coal requires 800-3000 gallons of water to produce. Due to the massive volume of water requirements, coal mining company must carry out water conservation. Moreover, the waste water from a coal mining process contains pollutants from mining activities that are dangerous for the environment. Therefore, the waste water must be treated to annihilate any harmful pollution before the water can be flowed back to the water resources. Stringent government regulation requires companies to report waste water quality regularly. The task to collect waste water quality data is laborious as a company needs operators to measure and checks the parameters periodically. Therefore, an on-line system to measure and collect the information is in dearth. However, expensive industrial sensors pose difficulties for small-scale coal mining. The paper presents the potential of low cost sensor for waste water online monitoring in coal mine. The experiment uses sediment from the waste water pond of a coal mining site. Two sensors are used to measure pH and total suspended solid (TSS). While pH level can be directly read from the sensor, TSS reading uses estimation from turbidity sensor. Log linear regression is used to plot the relation between turbidity and TSS. The R value shows that the low cost turbidity sensor is able to estimate TSS.
Evaluation of Zona Air Minum Prima (ZAMP) Program in Ngagel Tirto Surabaya
Authors: Erianik D , Marsono B D , Soedjono E S
Published: June 2020

Zona Air Minum Prima (ZAMP) is a special area where the water distributed to customers has met the quality standard to be directly consumed without needing to be boiled first. PDAM Surya Sembada Surabaya implemented the Zona Air Minum Prima (ZAMP) program starting on May 2018 in Ngagel Tirto by serving 152 house connections. However, to implement the ZAMP program in Surabaya, there are various challenges and constraints both from technical and community factors. Therefore, to find out the condition of the implementation of ZAMP program, an analysis of the operational aspects and utilization aspects of potable water by customers of ZAMP program is needed. The method that we used in this research was by taking water quality samples for measurement of total coliform and residual chlorine parameters as well as the pressure at customers’ house connections, water quality analysis in laboratory, distribution network analysis with WaterCAD v8i, questionnaires and literature studies. In operational aspect, the distribution system is almost continuous for 24 hours with an average production capacity that has been able to fulfill the customer water usage during peak hours. The pressure at the farthest point of distribution network has met the minimum criteria. About 70% of water samples have met the quality standard of potable water for total coliform parameters. In utilization aspect of potable water by the customer, the percentage of customers who directly consume potable water from the tap is 0%. However, about 73% of respondents are interested to consume potable water if PDAM can guarantee that the water quality has met the quality standard of potable water until the water reaches the tap of customers’ house.
Drinking Water Processing Using UV Rays
Authors: Purwoto S , Rusdiyantoro  , Sembodo B P , Nurcahyanie Y D
Published: June 2020

Pollution by pathogenic bacteria and other parasites can occur in groundwater. To reduce such pollution, disinfection can be used, including the use of ozone, chlorine gas, and ultraviolet light. The purpose of this study is to determine the ability to reduce parameters in groundwater according to drinking water quality standards of the following treatments: coagulation, filtration, absorption, deionization, and disinfection. The method of treating drinking water using UV light was carried out following the procedure where affixing of coagulant aid was the initial treatment and the filtration treatment used polypropylene sediments. Furthermore, treatments removed Fe and Mn using ferrolite, reduced hardness using manganese greensand, reduced cations using anion resins, and reduced anions using cation resins. Coliform bacteria were decreased using UV light. The findings of this study showed the following reductions of the parameters: total dissolved solids 5,319 mg/l, turbidity of 6 NTU scales, color 0.634 units of PtCo, fluoride 0.5 mg/l F, total hardness of 1,573.2 mg/l CaCO3, chloride 2,049.8 mg/l Cl, manganese 1.4793 mg/l Mn, nitrate 7.98 mg/l NO3-N, nitrite 0.703 mg/l NO2-N, zinc 0.02 mg/l Zn, cyanide 0.001 mg/l CN, sulfate 459,58 mg/l SO4, organic substance 3.82 mg/l KMnO4, detergent 0.03 mg/l LAS, fecal (E. Coli) 900 MPN/100 ml, total coliform 5,166 MPN/100 ml.
Design of Water Distribution by Using Umbulan Water in West Surabaya
Authors: Kurniawan Y C , Marsono B D , Soedjono E S , Yuniarto A
Published: June 2020

Umbulan spring water would be used as raw water for clean water production by Surabaya City. Umbulan water would be sold in bulk for Rp3,300.00/m3 in 2019. The price would rise by 5.53% annually. The difference between Umbulan water price and PDAM Kota Surabaya tap water rates encouraged PDAM Kota Surabaya to plan using Umbulan water source. In its design, PDAM Kota Surabaya would make a special area that would use only Umbulan water as tap water. To maintain its quality, Umbulan water must be distributed separately from PDAM Water. There are two alternative plans to distribute Umbulan water. The first alternative was by isolating the distribution pipes in the planned area. The second alternative was by using new food-grade pipes without isolating the existing pipe. These two alternatives affect water flow pattern in West Surabaya. Customers in the planned area still doubted the quality of Umbulan water. However, customers in that area were willing to pay a higher rate as long as it would not increase more than Rp50,000.00 monthly. By using Umbulan water and not rising tap water’s rates, PDAM Kota Surabaya would not experience any deficit until 2023. But, if PDAM Kota Surabaya increased tap water’s rate, PDAM Surabaya would not get any deficit until 2030.
The Role of HACCP Method in Determining Drinking Water Quality
Authors: Karnaningroem N , Sunaya M U L
Published: June 2020

One of the main daily needs of human beings is drinking water. Clean drinking water can sustain every aspect of human life. From time to time, humankind already discovered multiple water resources which can be used in various ways. One of them is mineral bottled water. Yet not even this water source is guaranteed safe to be consumed. There might be many contaminants contained in the mineral bottled water production process. This triggers the need to form an applicable, comprehensive, and standardized method to determine which drinking water sources are safe for consumption. One of the methods which can fulfill the requirements is HACCP. HACCP (Hazard Analysis and Critical Control Point) is a system to analyze risks by determining a sufficient controlling and supervision method to avoid irregularity in the production system. There are five primary principles in HACCP method, i.e. analyzing the risks on the system, determining critical control points and critical limits, arranging monitoring procedure and organizing corrective action in the diversion of critical limit which surpassed toleration limit. Mineral bottled water production system can be an ideal subject for the application of HACCP method due to its detailed system which can be analyzed further.
Study of the Wastewater Treatment Plant at Industrial Estate Rungkut Surabaya (SIER), East Java, Indonesia
Authors: de Araujo J P , Tangahu B V
Published: June 2020

An evalution was done on the domestic and non-domestic wastewater treatment plants (WWTPs) at PT. SIER. The purpose of this study is to analyze three aspects of the WWTPs i.e. technical aspect, institutional aspect and environmental aspect. One of the methods used was a combination of physical methods (primary treatment), biological methods (secondary treatment) without using or adding chemicals. Another was conducting a study of the adequacy of human resources management and installation manager at PT. SIER. In addition, environmental reviews of the management and monitoring plan to anticipate impacts of the company WWTP were also conducted. The results showed that the maximum flowrate was 10,000 m3/day which is equal to 11.57 L/s. The average discharge was 5,672 m3/day, equal to 6.65 L/s, while the exisiting flowrate was 7,000 m3/day, equal to 8.18 L/s. Results of the study provide recommendations of technical and non technical management and maintainance of the WWTP.
Waste Transportation Route Optimization in Malang using Network Analysis
Authors: Putra A.H , Amalia A. , Putro R.K.H , Darmayani L.F
Published: June 2020

Malang has a projection population of 861,414 people in 2018. This big population would cause waste generation that is increasing every day. Waste generation was recorded at the amount of up to 646.07 tonnes/day just from Malang in 2018. However, waste transported to landfill was only 516.84 tonnes/day. It means that the load factor was only 84.73%. Waste transportation problems come from various factor. Malang had only 68 temporary waste storage (TPS) that were spread in the city. This number of TPS was not commensurate with waste generation that was generated every day. The limited number of trucks was another issue considering Malang only had 35 trucks capable of making three trips per day. Limited number of trucks and TPS has led to a bad situation for transporting waste. As a result, many wastes were left behind in TPS. Therefore, it is necessary to analyze the best route for the trucks sso that the waste route can be optimized using network analysis in ArcGIS. This study assessed one route of a truck which had the longest distance (TPS Tunggul Wulung) with a total of 60.2 km at a time that it reached in 113.8 minutes. The result of the network analysis method with ArcGIS showed that the total distance declined to 36.2 km. This indicates that the alternative route shown by the shortest distance method has been able to reduce the existing distance for waste transportation route by 24 km. This certainly resulted in the decline in travel time for ± 39 minutes/day. This indicates that the existing routes can be optimized by alternative route network analysis in ArcGIS.
Assessing Risk on The Engineering Procurement Construction (EPC) Project from The Perspective of The Owner: A Case Study
Authors: Nurdiana A , Susanti R
Published: June 2020

Risk is part of infrastructure projects, and EPC projects are no exception. Risk is a consequence of uncertainty conditions. In construction projects, the risk cannot be predicted because there are a lot of uncertainties in predicting problems [1]. The risks in different types of contract projects would also be different, because of the different characteristics of each contract. In this study, the risk of construction projects was reviewed based on the project life cycle of the E.P.C (Engineering Procurement Contract) contract. The aim of this study is to analyze the risk from the perception of the owner of the project with the Engineering, Procurement, and Construction contract type. Primary data collected were in the form of identification and assessment of the impact and risk probability obtained by interviews and questionnaires. Data analysis was done with the Risk Breakdown Structure method to determine the risk ranking. The risk analysis of the Engineering Procurement Construction project from the owner’s perception showed that the majority risk was risk in the low category (46%), then moderate risk (27%), and high risk (27%).
The Effect of Adding Minerals on Plastic Aggregate to Lightweight Concrete
Authors: Wiswamitra K A , Dewi S M , Choiron M A , Wibowo A
Published: June 2020

This research was conducted by making several concrete mixtures using artificial aggregates from PET (polyethylene terephthalate) plastic and mineral mixtures. Four types of minerals were used; namely, fine sand, fly ash, rice husk ash, and Portland cement. Each of these powders was added to the plastic melt during the aggregate manufacturing process. Five types of aggregates were produced including one artificial aggregate without any mineral addition. The initial test results showed that for all minerals, the use of artificial aggregates as a substitute for natural coarse aggregates tended to increase the compressive strength of concrete when compared to the reference concrete, i.e. concrete with pure PET aggregate (without added minerals). At this step, it was seen that the addition of cement and rice husk ash to PET aggregates provided the highest concrete compressive strength. In the next stage, by adding cement content to the concrete mixture, artificial aggregates from PET plastic were able to produce concrete that meets the requirements as structural lightweight concrete, both as a substitute for natural coarse aggregates and for the overall natural aggregates (fine and coarse aggregates).
The Empirical Prediction of The Critical Area of Road Embankment Landslide Using Limit Equilibrium Method
Authors: Sari P T K , Lastiasih Y
Published: June 2020

This study presents the empirical prediction of the critical area for road embankment landslide. Limit equilibrium method which can also be referred to as LEM was used to obtain the factor of safety, circular centre of landslide, moment of resistance and other landslide variables. The variables used in this study were the typical soil subgrade and embankment dimension. A conclusion obtained from this study is that the safety factor is not the only determinant of the amount of embankment reinforcement needs. Other variables namely the center of landslide and delta moment resistance were also very decisive. The smallest safety factor did not necessarily result in the number of critical reinforcement requirements of landslide reinforce. In addition, the landslide area which produced the largest amount of reinforcing needs was different for each variable used in this study. This research also produced some empirical formula to determine the landslide area which produces the highest number of geotextiles from 180 trials in each variation. The empirical formula is expected to assist the designer for reinforcement needs in road embankment.
Functional shoe for the detection of walking pattern anomalies
Authors: Malengier B , Tseghai G B , Ciocci M C , Mengistie D A , Van Langenhove L
Published: June 2020

Analysis of walking patterns can play an important role in the diagnosis of musculoskeletal disorder and detecting anomalies in walking gaits. In this work, we introduce a systematic approach to detect person’s walking patterns. A flexible resistive pressure sensor, developed from electro-conductive textile fabric, is non-intrusively integrated in an ordinary shoe together with a time of flight height sensor. The constructed shoe detects both the pressure between shoe and foot and the gap between shoe and ground. The combination of those give a trace of the walking pattern. The shoe should be functional in detecting walking pattern anomalies.
Hybridization of game theory and ridesharing to optimize reverse logistics of healthcare textiles
Authors: Ahlaqqach Mustapha , Benhra J , Mouatassim S , Lamrani S
Published: June 2020

The reverse logistic of Healthcare Textile has become nowadays a major concern in Morocco. Consequently, it imposes to authorities and professionals the obligation to perform a sustainable reverse logistic model. Through this study, we are going to hybridize game theory and ridesharing to optimize a multi-objective reverse logistics of healthcare textiles. We opted for the Genetic algorithm to face the complexity of the ridesharing model. For cost allocation, the allocation based on volume give best results compared to Alternative Cost Avoided Method. Besides, it allows a higher gain for players with the most important activity.
Influent product and process parameters on the mechanical behaviour of 3D warp interlock fabrics made with E-glass yarns
Authors: Kececi A , Boussu F , Soulat D
Published: June 2020

3D weaving process has been more and more used as reinforcement for composite materials. However, 3D weaving applications are recent and the mechanical properties of the 3D warp interlock fabrics are not well known. Tensile tests have been performed both in the warp and weft directions of the fabrics, indeed they lead to different behaviour regarding the architecture. Results from experiments have been statistically analysed using PLS regression. This study led to correlations between fabrics parameters and mechanical behaviour. Moreover, it revealed that fabrics parameters such as the binding type, the yarns crimp and the picks density have influence on the quasi-static mechanical behaviour.
Preparation and characterization of a new low-cost polyacrylonitrile adsorbent
Authors: Bouchoum Hayat , El Bouchti Mehdi , Jada Amane , Tahiri Mohamed , Cherkaoui Omar
Published: June 2020

Amidoximated polyacrylonitrile fibers (AO-PANF) was synthesized using hydroxylamine chelating agent to prepare an effective adsorbent for heavy metal and dyes removal. This study is the continuation of an earlier study and focuses on the characterization of the adsorbent. The thermal properties of adsorbent were evaluated using TGA and DSC analysis. The mechanical properties of the adsorbent were also been investigated. Characterization results reveal an improvement of thermal stabilities due to the modification process using hydroxylamine chelating agent. However, a reduction in mechanical properties was showed.
100% PVDF 3D textiles structures to improve energy harvesting
Authors: Talbourdet A , Cochrane C , Rault F , Lemort G , Campagne C , Devaux E
Published: June 2020

With a final view to prototyping a textile energy harvesting system, piezoelectric textile structures based on 100% poly(vinylidene fluoride) (PVDF) were developed and characterized. Multifilaments of 246 tex were produced by melt spinning. The mechanical stretching during the process provides PVDF fibers with an optimal β-phase ratio (97%). Some studies have already been carried out on piezoelectric PVDF-based structures as films or textiles. The goal of the study is the investigation of the differences between 2D and 3D woven fabrics structures from piezoelectric PVDF multifilament yarns. The textile structures were poled after the weaving process, and a maximum output voltage of 2.3 V was observed on an angle - through-the-thickness interlock (interlock 3D structure) under compression by DMA tests. Energy harvesting is optimized in a 3D interlock thanks to the stresses of the multifilaments in the thickness. This finding has led to the design of an inner sole prototype from a knitting structure and another structure with piezoelectric fibers outside the plane of the fabric. The prototype is able to harvest energy and the results are consistent with the measurement realized with DMA under dynamic compression close to walking.
Mitigation of environmental impact caused by flame retardant textile finishing chemicals
Authors: Nora Boisserée , de Castro Paula Félix , Ine De Vilder , Ariadna Detrell , Josep Casamada
Published: June 2020

LIFE FLAREX project focuses on the mitigation of environmental and health impacts caused by toxic compounds that are contained in commonly used flame retardants (FRs) in home textiles which are based on halogenated-, antimony trioxide-, formaldehyde release related products. Conventionally used FRs in the home textile sector are decabromodiphenyl ethane, its combination with antimony trioxide and dialkyl phosphono carboxylic acid amides, respectively. The project evaluates alternative FRs and their feasibility at the industrial scale level. Among all the home textile applications, curtains, upholstery, mattress ticking and bedding sheets were selected as the most interesting products in terms of need for substitution. Within these applications, cotton, polyester and polyester/cotton blends were selected as most representatives. Technical performance, flame retardant resistance as well as washing durability was evaluated for up to eight different alternatives and compared to the conventional FRs. The alternative FRs included mixtures of phosphates, ammonium polyphosphate, expandable graphite, guanidine phosphate, ammonium sulphamate and other new patented technologies in the market. A toxicological assessment through skin-FRs contact measurements is being conducted for assessing their absorption and toxicological properties. Additionally, an environmental and health assessment is also being conducted as well as a life cycle assessment comprising environmental, economic and social considerations. The project has at the moment demonstrated the feasible substitution of the aforementioned toxic FRs for greener and safer FR alternatives.
Innovative solution for increasing the performance of the cutting equipment for textile subassembly having variable geometry
Authors: Mihai C , Ene A G , Jipa C
Published: June 2020

Although the textile industry is in worldwide recession, the field of technical textile articles is in a continuous development, proving that the manufacturers of these products are concerned about finding solutions and creating high performance articles. Considering the need to increase productivity and product quality while reducing the consumption of materials, in the last decades, processing technologies specific to textile industry had a quick dynamic, that has led to the development of new, very efficient technological methods and processes, characterized by an advanced degree of automation. The proposed technological solution was developed based on the correlational analysis of the technological parameters of the variable geometry subassemblies, targeting the following technological aspects: monitoring of the functional parameters during the technological process development and real-time warning of the occurring dysfunctions; display of functional parameters and controls on a HMI touch panel display; adjusting the settings of the parameters of each inverter according to the dynamic parameters of the ordered devices (couple, speed, acceleration-deceleration, brake moment, etc.); PLC circuit logic programming via a software program dedicated to the application.
Analysis of the power transfer and electrical performances of an embroidered textile loop antenna for near field communication (NFC) application
Authors: Garnier Baptiste , Rault François , Mariage Philippe , Vassiliadis Savvas , Stathopoulos Nikos , Mitilineos Stelios , Cochrane Cédric , Konkar Vladan
Published: June 2020

We present a new class of wearable textile antenna and analyse their performances through an electrical study. The developed prototypes have been realized by an embroidery process and are made of conductive twisted copper/polyester yarns on a cotton substrate. These antennas aim to transfer power and data thanks to the NFC technology, so the operating frequency is 13.56MHz and the maximal reading distance is around 10cm. The strong resistance of the yarn (4.20Ω/m) make us overlap three yarns to reach satisfactory electrical characteristics. Antennas are composed of a textile plan circular coil to which we add a usual capacitor. The study of coils electrical characteristics highlights a linear evolution of coil resistance and inductance in function of embroidery geometrical parameters. Also, these data show the feasibility of such antennas, especially through quality factor values reaching 45.
Collection of requirements for teaching in the area of Smart Textiles
Authors: Bräuning Manuela
Published: June 2020

The textile and clothing industries are facing new challenges. Smart Textiles are a huge topic with a high market potential, however there are only few approaches in teaching this interdisciplinary field. Moreover, individuals are expected to continuously adapt to the new requirements by following the concept of lifelong learning. We propose a new concept that will integrate a smart textiles kit. This application-oriented construction kit should help to extend the frontiers of knowledge, stimulate creativity, and give students the ability to solve real-world problems. As added benefit it will accelerate the understanding of innovation and interdisciplinary challenges. The blended learning concept aims to prepare students to think interdisciplinary, broadly, deeply, and last but not least critically. Students will be ready to contribute to the development of new products and face the challenges of structural change along their working life.
Enhanced piezoelectric properties of PVdF-HFP/PZT nanocomposite for energy harvesting application
Authors: Oumghar K , Chakhchaoui N , Farhane R , Eddiai A , Meddad M , Cherkaoui O , Van Langenhove Lieva
Published: June 2020

The use of piezoelectric nanocomposite in detection and actuation applications for the development of electromechanical microsystems (MEMS) has become quite common over the last decade. In this paper, we present a flexible piezoelectric nanocomposite films, composed of lead zirconate titanate (PZT) nanoparticles, embedded in poly(vinylidene-difluoride hexafluoro propylene) (PVdF-HFP) matrix. Piezoelectric and ferroelectric properties evolution is proportional to the evolution of the crystalline β-phase. The evaluation of the interactions between PZT and PVdF- HFP, performed by Fourier transform infrared spectroscopy (FTIR), revealed a dramatic improvement in these characteristics over pure PVdF-HFP, and attributed to a better crystallinity of the PVdF-HFP matrix and uniform distribution of nanoparticles. These films nanocomposites were done by solvent casting method, with various concentrations of PZT. Results of these experiments indicate that the investigated thin films nanocomposites are appropriate for various applications in energy storage and energy harvesting application.
Polyurethane coated non-woven: A Promising Solution for Building Insulation
Authors: El Wazna Mohamed , Mrajji Ouahiba , Ouhaibi Salma , Garoum Mohammed , Belouaggadia Naoual , Cherkaoui Omar , El Bouari Abdeslam
Published: June 2020

The aim of this work is to evaluate the potential application of textile and polyurethane aqueous dispersion in insulation application in the form of a nonwoven polyurethane composite. Based on their properties, nonwoven are promising insulation solution for buildings. However, the major disadvantage is their flammability and their low mechanical property. The main purpose of this research is to improve physical, thermal and acoustical properties of these materials, by using a thin layer of polyurethane. According to the experimental results, it can be concluded that the PU layer enhanced the barrier properties of textile nonwoven. Moreover, it has a great effect on the sound absorption coefficient and thermal conductivity. The results of this study provide an effective solution for insulation application. Indeed, these alternative materials will contribute to the cost advantage as well as the green building initiative.
A DEA-ANN framework based in Improved Grey Wolf Algorithm to evaluate the performance of container terminal.
Authors: Fri Mouhsene , Douaioui Kaoutar , Tetouani Samir , Mabrouki Charif , Semma El Alami
Published: June 2020

Managing the performance of port container terminals is one of the major challenges in the supply chain management. In response to this challenge, we propose a new framework to assess managers in evaluating the global performance of operations in port container terminals. The new framework integrates the Data Envelopment Analysis (DEA) and Artificial Neural Network (ANN). The DEA is used to compute the efficient score of the system. In ANN, we use the improved grey wolf optimizer based on Levy’s flights to improve learning. In order to prove the efficiency of our model, we apply the framework in 2 ports container terminal: Tangier Med Port and Casablanca Port. The result is compared to standard algorithms and outperforms the cited algorithm in order to avoid local minima. The new trainer improved grey wolf optimizer is also evaluated using four known classification datasets and on three approximation functions datasets.
Knitted Cotton Fabric Strain Sensor by In-situ Polymerization of Pyrrole
Authors: Tseghai G B , Malengier B , Mengistie D A , Fante K A , Van Langenhove L
Published: June 2020

The purpose of this research work was to develop a textile-based strain sensor. A conductive textile fabric was produced by the coating of knitted cotton fabric with in-situ polymerization of polypyrrole. The sensor consists of a conductive textile as an electrode, stainless steel yarn as interconnection, Arduino Nano as a controller, HC05 Bluetooth module, and a Lithium polymer battery as a power source. For the demonstration, the sensor was placed on the upper arm and bicep stretch was performed. It was observed that the contraction of the arm muscle causes a reduction in resistance of the electrode. Therefore, change in swelling was successfully detected from the increase and drop of resistance during contraction and relaxation of the muscle. This principle could be applied to determine the status of peripheral edema, where the increase in resistance in this work indicates edema is becoming severe.
Investigating the effect of air permeability and moisture on 2.5GHz textile microstrip patch antenna performance
Authors: Wahab Memon A , Van Torre P , Malengier B , Van Langenhove L
Published: June 2020

When discussing textile antenna and its comfortable use, the effect of air permeability and atmospheric moisture are eminent factors which have direct influence on textile antenna transmission characteristics and comfort of the wearer when used practically. The rate of airflow under certain air pressure passing through any surface is termed as air permeability of that surface and amount of moisture regained by a material when exposed to varying environmental humidity ranges compared to dry weight of that material is its moisture regain. Fleece and spacer fabrics were selected each having different air permeability and moisture regain values but both fabrics constitute polyethylene terephthalate - PET. Microstrip patch antennas that resonate at 2.45GHz were constructed utilizing both textile fabrics. Spacer fabric has high air permeability and low moisture regain compared to fleece fabric. Spacer fabric is a knitted 3-dimensional structured fabric whereas fleece is nonwoven in structure. FlecTron® is utilized as the conductive part of the microstrip patch antenna. Antenna made off spacer fabric showed better transmission characteristics and are least altered due to change in humidity compared to antenna made off fleece fabric. In this research, we conclude that the selected textile spacer fabric, with its high air permeability and low moisture regain, is the most favourable textile material in the construction of textile antennas.
A project to improve awareness for cyber security in smart textile applications
Authors: Bräuning Manuela , Scheible Tobias , Rieger Martin , Morgenstern Holger , Göbel Désirée , Schäfer Nele
Published: June 2020

The textile and clothing industry is facing structural changes and will enter into the interdisciplinary market of Smart Textiles. This market has a high market potential, but there is also plenty new challenges. That is why our project systematically investigates the integration and IT security of electronic communication systems in textile products. The main objectives are the scientific investigation of the area of IT security of smart textile products, the transfer of existing security concepts as well as the development of secur innovative prototypes. Based on the knowledge gained, guidelines for further action are deduced and courses for the textile and clothing industry will be created, ensuring an intensive multidisciplinary and cross- industry know-how transfer. This challenge is to be solved by an interdisciplinary team of scientists and companies from the fields of textile and clothing as well as information technology.
Review of literature on existing models about the impact of continuous training on business performance
Authors: Moussaid Asmaâ , Tkiouat Mohamed , Hlyal Mustapha
Published: June 2020

The development of a company requires the development of its human resources. Research has shown that overall performance is measured not only by the economic dimension but also by the social dimension and actions on development processes, in particular, the continuous training process which is the constructor of adequate skills for improvement. The below analysis will be divided into two axes:

The first axis aims to define the overall performance through a review of literature. It demonstrates a relationship between the individual’s performance and continuous training as a process of individual development, and cites some performance measurement tools.

The second axis examines the literature following specific inclusion criteria, its impact on overall performance, and highlights existing assessment models.
Sustainable Supply Chain Management: review of triggers, challenges and conceptual framework.
Authors: Saidi D , El Alami J , Hlyal M
Published: June 2020

An urgent need for organizations arises during the last nine years to incorporate social and environmental concerns into their Supply Chain. The adoption of new sustainable practices is no more a choice neither an option, it becomes one the company worries. This review aims to take a fresh look into the consideration of Sustainability in Supply Chain Management patterns for the last nine years (from 2010 to 2019) with a critical point of view. A growing awareness toward years of sustainability has contributed to the development of the new Sustainable Supply Chain (SSC) practices. The literature review provides an overview about the area of Sustainable Supply-chain Management (SSCM), it also outlines practices and patterns that need to be developed, with a focus on the current issues and emphasizing on used methodologies. A time line of relevant papers is also provided as a reference by using the rich and targeted body of researches. Moreover, a conceptual framework is proposed and the role of stakeholders is clearly defined. Finally, a summary of results and interpretations is provided, and the future research perspectives and issues are highlighted.
Thermal resistance of double jersey fabric knitted by different yarn raw material
Authors: Kopitar D , Pavlovic Z , Skenderi Z , Vrljicak Z
Published: June 2020

The research was carried out on five double jersey knitted fabrics, knitted from cotton, Viscose®, Tencel®, Modal® and polyester ring spun yarns finesses of 20 tex. A circular double bed knitting machine gauge of E17 with the same production parameters was used for knitting all the fabrics. A change in all knitted fabric structure parameters was reflected through fabric mass per unit area, which ranged from 142 g m−2 to 165 g m−2. The minimum and maximum knitted fabric mass per unit area difference is up to 16 %. The lowest thermal resistance have polyester, while the largest have cotton knitted fabric. Thermal resistance of cotton fabric is higher for 36.7 % related to polyester knitted fabric. Considering basic knitted fabric parameters, knitting with same constructional parameters but different yarn raw materials doesn’t provide knitted fabric with same mass per unit area or thickness, i.e. thickness factor. It can be concluded that beside basic knitted fabric parameters, yarn raw material influence on thermal resistance.
Physical-mechanical properties of thermal protective fabric subjected to textile care
Authors: Schwarz I , Brnada S , Kiš A , Kovačević S
Published: June 2020

Today, it is increasingly demanding, more complex and harder to achieve certain properties of fabric which are prescribed by standards for a particular purpose, and it is even more difficult to achieve the sustainability of these properties during use. In this paper, the most relevant physical-mechanical properties of thermal protective woven fabrics, made from meta-aramide yarns, after subjection to textile care, are investigated. This research is related to the objectives of the scientific project MF-WCOMPROTECET, which is based on the development of innovative multifunctional woven fabrics and composites for thermal protective clothing that will overcome the properties of the previous fabrics in the application.
Optical method for the determination of the roughness profile of woven fabrics
Authors: Vassiliadis S , Matsouka D , Watel Q , Jaouani H
Published: June 2020

Surface properties are important characteristics of textile fabrics. Apart from the tactile characteristics of the fabric, these properties can affect aspects of the fabric behaviour both in use and during further production processes. Fabric tactile characteristics and friction properties are just two of the properties connected to surface roughness. Typically surface roughness is determined using the KES-F system. This research paper proposes an innovative optical method for the measurement of fabric surface roughness based on image processing of photos of fabric cross-sections obtained through the stereoscopic microscope. Thirty parametric cotton woven fabrics were tested both in the warp and weft direction and the surface roughness for each fabric was obtained as a percentage of the void areas on the surface of the fabric.
Microstructural characterization of different metal matrix composite claddings reinforced by TiC through YAG laser cladding
Authors: Mahmoud Essam R I , Tirth Vineet , Algahtani Ali , Khan Sohaib Z
Published: June 2020

In this work, a YAG laser was used to clad TiC-reinforced metal matrix composite layers on the surface of different types of metals; low carbon steel, high C–Cr bearing tool steel, spheroidal graphite cast iron and commercially pure titanium. The cladding processes were carried out at heat inputs ranging from 175 J mm−1 to 700 J mm−1 and at a fixed traveling speed of 4 mm s−1. The microstructures of the cladding layers were investigated in detail. In all cases, TiC-surface metal matrix composite layers were successfully formed at different laser heat inputs on all the metal surfaces. A few TiC particles seemed as fine dendrites after the laser treatment. The amount of dendritic TiC has a direct relationship with the laser heat input. For low carbon steel, the clad layer showed a martensitic structure, with sound metallurgical bonding to the base metal and without any defects at the highest laser heat input used in this study (700 J mm−1). In the case of high C–Cr bearing tool steel, lower laser heat inputs were enough to form a sound clad layer consisting of fine TiC dendrites distributed in a matrix of martensite laths, some retained austenite and acicular carbides. Laser heat input of 175 J mm−1 was enough to build a defect-free clad layer on spheroidal graphite cast iron. The matrix comprised of cementite, martensite, and some blocks of retained austenite. Cracking appears at a higher heat input of 500 J mm−1 in the spheroidal graphite cast iron. The matrix of the clad layer on pure Ti substrate was α′-Ti martensite, which decreased by increasing the laser heat input.
High selectivity Fe3O4 nanoparticle to volatile organic compound (VOC) for MEMS gas sensors
Authors: Hsiao Yu-Jen , Nagarjuna Yempati , Tsai Chun-An , Wang Sheng-Chang
Published: June 2020

In the current study, XRD analysis shows the polycrystalline form an inverse spinel Fe3O4 structure. Fe3O4 film is prepared by dip coating method on MEMS gas sensors to test the sensitivity on volatile organic compound (VOC) gas. VOC is being tested at 92 mW (∼300 °C) power consumption with different VOC gas concentrations and also tested with different gases like NO2, SO2, NH3 and CO gas. The results showed that the Fe3O4 gas sensor has better selectivity and high response with VOC 1.2 ppm concentration. Structural morphology is seen and reaction mechanism when VOC gas reacts with Fe3O4 material is also being discussed.
Noisy distributed sensing in the Bayesian regime
Authors: Wölk S , Sekatski P , Dür W
Published: June 2020

We consider non-local sensing of scalar signals with specific spatial dependence in the Bayesian regime. We design schemes that allow one to achieve optimal scaling and are immune to noise sources with a different spatial dependence than the signal. This is achieved by using a sensor array of spatially separated sensors and constructing a multi-dimensional decoherence free subspace. While in the Fisher regime with sharp prior and multiple measurements only the spectral range Δ is important, in single-shot sensing with broad prior the number of available energy levels L is crucial. We study the influence of L and Δ also in intermediate scenarios, and show that these quantities can be optimized separately in our setting. This provides us with a flexible scheme that can be adapted to different situations, and is by construction insensitive to given noise sources.
Peculiarities of inelastic scattering of light by

Nd

1
−
x

Bi

x

FeO

3

nanoclusters
Authors: Tugova E A , Karpov O N , Yastrebov S G , Besedina N A
Published: June 2020

Nanocrystals of

Nd

1
−
x

Bi

x

FeO

3

were produced during the process of combustion of the glycine-nitrate with precursors together with an excess amount of the oxidizing agent. X-ray diffraction patterns and Raman spectra were measured for investigation of the structure of the synthesized material. Hidden periodicities were extracted in the Raman spectra, using the example of two compounds with x = 0 and x = 0.2, correspondingly. In comparison with theory, the analysis showed that the distribution of the inverse periods revealed from the experiment results in the appearance of two narrow peaks common for both samples with maximums 0.014 and 0.01 cm (70 and 100 cm−1). The discovered effect is analyzed with the model of a combination of Raman- active oscillations from the nanoscale inelastic light scatterers with different shapes.
Diagnosis and Treatment of Patients With Acute Myeloid Leukemia With Myelodysplasia-Related Changes (AML-MRC)
Authors: Arber Daniel A , Erba Harry P
Published: June 2020

Objectives

Acute myeloid leukemia (AML) with myelodysplasia-related changes (AML-MRC) represents a high-risk and somewhat diverse subtype of AML, and substantial confusion exists about the pathologic evaluation needed for diagnosis, which can include the patient’s clinical history, cytogenetic analysis, mutational analysis, and/or morphologic evaluation. Treatment decisions based on incomplete or untimely pathology reports may result in the suboptimal treatment of patients with AML-MRC.

Methods

Using a PubMed search, diagnosis of and treatment options for AML-MRC were investigated.

Results

This article reviews the current diagnostic criteria for AML-MRC, provides guidance on assessments necessary for an AML-MRC diagnosis, summarizes clinical and prognostic features of AML-MRC, and discusses potential therapies for patients with AML-MRC. In addition to conventional chemotherapy, treatment options include CPX-351, a liposomal encapsulation of daunorubicin/cytarabine approved for treatment of adults with AML-MRC; targeted agents for patients with certain mutations/disease characteristics; and lower-intensity therapies for less fit patients.

Conclusions

Given the evolving and complex treatment landscape and the high-risk nature of the AML-MRC population, a clear understanding of the pathology information necessary for AML-MRC diagnosis has become increasingly important to help guide treatment decisions and thereby improve patient outcomes.
Lenalidomide-Associated Secondary B-Lymphoblastic Leukemia/Lymphoma—A Unique Entity
Authors: Germans Sharon Koorse , Kulak Ozlem , Koduru Prasad , Oliver Dwight , Gagan Jeffery , Patel Prapti , Anderson Larry D , Fuda Franklin S , Chen Weina , Jaso Jesse Manuel
Published: June 2020

Objectives

Autologous stem cell transplant with lenalidomide maintenance therapy has greatly improved the relapse-free and overall survival rates of patients with multiple myeloma but also has been associated with an increased risk of secondary B-lymphoblastic leukemia/lymphoma (B-ALL).

Methods

We report a comprehensive review of the clinicopathologic features of 2 patients with multiple myeloma who developed secondary B-ALL during lenalidomide maintenance.

Results

Our observations showed that the disease may initially present with subtle clinical, morphologic, and flow-cytometric findings. The flow cytometry findings in such cases may initially mimic an expansion of hematogones with minimal immunophenotypic variation. Both patients achieved complete remission of secondary B-ALL after standard chemotherapy; however, one patient continues to have minimal residual disease, and the other experienced relapse. Next-generation sequencing of the relapse specimen showed numerous, complex abnormalities, suggesting clonal evolution.

Conclusions

Our findings suggest the need for increased awareness and further study of this unique form of secondary B-ALL.