bluuebunny/crossref_metadata_2025 huggingface dataset:
Identification of Conditions and Distribution of Colonial Buildings in Bandung City
Authors: Tamimi N , Fatimah I S , Hadi A A
Published: June 2020

Bandung is one of the cities in Indonesia that is closely related to the history of the Dutch colonial period. Colonial characters can still be seen in several buildings and landscapes in Bandung so that they can be categorized as one of the city’s identities. The large number of regional development and development activities often causes buildings and historical landscapes to be covered up or displaced by modernization because historical heritage objects have not been a top priority in regional development programs. This study aims to identify, inventory, and see the areas that have the most colonial buildings in the city of Bandung. The method used is a descriptive analysis method with the step of inventorying colonial buildings then mapping the position of colonial buildings that are processed using point density analytic. The results of the study show that most of the colonial buildings are well maintained and the area with the most colonial buildings is in the Braga area of Bandung.
Collaborative Approach For Coastal and Marine Spatial Planning in Indonesia: Opportunity and Challenge
Authors: Ramadhan A , Salim W , Argo T A
Published: June 2020

The transition model from centralistic to decentralization government influences planning processes in Indonesia. It demands stakeholder’s collaboration to facilitate broad participation and coordination among sectors and regions. The following article examines the theoretical foundation, opportunities, and challenges of collaboration approach on coastal and marine spatial planning (CMSP) in Indonesia. A literature study has been engaged to reveal the theoretical foundation of a collaborative approach for CMSP. Based on the exploration, a collaborative approach is unavoidable to cope with the nature of the problem in CMSP. This approach has a bright future due to the global support and political era of democracy. However, in practice, there are still a number of obstacles ranging from bad communication among actors to low knowledge and awareness of sustainability issues.
Ecological Green Space Planning for Butterflies Habitat in Residential Area
Authors: Maryam H , Pramukanto Q
Published: June 2020

Development a residential area cause fragmentation both green space and wildlife habitat as well. Moreover, the landscape design orientation in housing areas usually focusing on the aesthetic value and less attention to the ecological function as well as the health of the ecosystem. Butterflies are the indicators of environmental and ecosystem health. Areas rich in butterflies and moths indicate the richness of other invertebrates. These collectively provide a wide range of environmental benefits, including pollination and natural pest control. Therefore the presence of ecological orientation of green space in a residential area as a habitat for butterflies and other wildlife is one of the solution. The purpose of this study is to create an ecological green space plan for a butterflies habitat in the residential area. The study was conducted consist of preparation, data collection, data analysis, synthesis and planning. The aspect analyzed in this study are biophysical aspect and quality of ecological aspect that contains butterflies diets and a host plants, proximity to the water resource, vegetation cover and the interspersion of habitat components. The result show that the butterflies on the site, qualitatifly, indicate quite diverse lack of diversity of host plants and the vegetation for the butterflies diets. The as green space plan for butterfly habitat was arranged based on the development of the ecological space concept, the vegetation concept and the animal activities concept. Each green space unit (patches) has functions as sink and source and also as steping stone and connecting corridor between sinks and source. A plant selection is proposed for each green space unit.
Educational Tourism Potentials of Argapura Village, Bogor Regency towards Pongkor UNESCO Global Geopark
Authors: Setianata A A , Aidi M N , Gunawan A
Published: June 2020

Argapura is one of the village areas in Cigudeg Subdistrict which has potential unique characteristics for a tourist destination, namely Geopark. Argapura Village is one of the Pongkor National Geopark development villages covering 15 sub-districts in Bogor Regency. Pongkor National Geopark is a unitary space with geodiversity, culturediversity and biodiversity which aims to preserve and protect the wealth of natural resources. The geopark is located very close to tourism activities, but the existing tour has not specifically touched the educational aspect (educational tourism). Educational tourism is a tourism packaging program that is loaded with educational values in each of its activities. Argapura Village needs to be developed educational tourism aimed at all visitors. The objectives of this study were to identify and analyze the potential of educational tourism objects in Argapura Village, and to arrange educational tourism program in Argapura Village. Data collection through literature studies, field surveys and interviews with stakeholders. Data analysis using tables and described based on the criteria of educational values and geopark elements. The results of study showed that Argapura Village has two main potential attractions/educational tourism objects, namely Angklung Gubrag and Gudawang Caves. Angklung Gubrag is an educational tourism attraction that has high cultural, historical and religious values. Gudawang Cave is an educational tourism object in the form of karst ecosystem. In addition to the both of tourism objects, there are several other potential tourism objects and characteristics of the Geopark. The Argapura Village educational tourism was compiled includes two main programs, namely the half-day and the full-day visiting programs.
Happy Beach Coastal Landscape Design, Based on Landscape Engineering Adjustment
Authors: Rahmah A N , Nuryanti P
Published: June 2020

Coastal Landscape design based on landscape engineering adjustment is a coastal landscape design which applying theory, mathematical and physical modelling to practical design problems. The objective of this research is to analyze the characteristic of site and to design coastal landscape based on landscape engineering adjustment, in addition to make a sustainable site landscape design. Happy beach is one of unexposed black sand beach to many tourists, which has beautiful and clean ocean scenery. Dolphin watching tour is the main potential nature attraction to the site through riding boat at every sunrise. Methods that used in this research in design process; 1. Project acceptance; 2. Research analysis, by exploring some potential, amenity, obstacle and danger signal of site; 3. Design, the creative process of responding to condition while concentrating meaning; 4. Construction drawing. Landscape engineering approach was used to solve some specific site problem such us stormwater, climate, and beach sand which deadly for plants. The rainfall intensity value of 101.72 mm / hour. The amount of runoff is 13 m3/s it has a relatively small value. From the temperature data of Tukadmungga Village for one year, which is listed in Table 1, it can be concluded that the highest temperature reaches 31 °C. The highest temperature occurs in September 2018 to March 2019. In the range of November to April, the position of the sun against the site can be illustrated with sun path diagram. By knowing the position of the sun, we can determine the exact position of vegetation planting, which is located in the west and east of the building. m3/s0.13 m3/s Happy Beach Landscape Design include the detail of material properties which has the best performance for its using, climate, and design concept. Coastal landscape design eventually will be a recommendation for Tukadmungga village perbekel office and also North Bali Ministry of public work.
Landscape Design for Coastal Ecotourism of Jati Beach, North Sipora Island, Mentawai West Sumatera
Authors: Marwan N F , Anwar D R
Published: June 2020

Coastal area in Mentawai Islands has natural diversity ranging from coral reefs, great waves for surfing and the beauty of the beaches. However, facilities, infrastructure and human resources are still limited. Facilities and infrastructure are the most important things in developing a tourism. This research was conducted to determine the character of the landscape, potentially of constraints and analysis of user behaviour, perception and provide design recommendations for ecotourism development on Jati Beach in North Sipora Island. The method used the physical-biophysical, social, economic, cultural, tourism, oceanography, and conservation approach aspects using quantitative and qualitative descriptive analysis. The basic concept of the site is Arsa Metarpa is an extension of Arat Sabulungan and 3 principles of nature conservation efforts in Mentawai, metanoia, catharsis, and paripatia which are adaptations of the Mentawai indigenous beliefs in preserving the environment to develop aspects of conservation, education and recreation. The resources are flat landforms, typical Jati beach plants such as Barringtonia and pes-caprae coastal plants formation. The design concept that applied in the site is transformation from one of the symbols of the Mentawai, jaraik. Jaraik is a traditional element of Mentawai, commonly used in uma’ as welcoming. Its distinctive shape is transformed into the circulation pattern and the pattern of landscape elements in the site. The output of this research is limited to the landscape design phase, with the final product as site plan and other supporting technical drawings that can be used in design reference in the landscape of the ecotourism coastal in Jati beach.
A Comparative Study of Life Cycle Impact Assessment using Different Software Programs
Authors: Iswara A P , Farahdiba A U , Nadhifatin E N , Pirade F , Andhikaputra G , Muflihah I , Boedisantoso R
Published: June 2020

Life cycle analysis (LCA) is a powerful method to quantify impacts based on material input in the process production. The results of midpoint impact analysis categories vary from global warming potential to water footprint. In addition, endpoint impact analysis also provides quantitative results of general environmental impact assessment which is possible to be written as additional results and a deeper analysis in Government or Company Environmental Report. There are many types of software that can be used for impact analysis, for example, SimaPro, OpenLCA, Gabi, Umberto, etc. In this study we analyze the difference of impact assessment result using Simapro and OpenLCA with same material input data and similar database. The results of the environmental impact analysis using the CML-IA baseline V3.05 / EU25 method in the SimaPro software after normalization are as follows: global warning impact contribution 0.0206, ozone layer depletion 0.0002, acidification 0.0016, and eutrophication 0.0134. Meanwhile, the analysis results from OpenLCA software after normalization are: global warming impact contribution 4,5071 × 10−13, ozone depletion 1,0794 × 10−14, acidification 3,2878 × 10−13, and eutrophication 8,4541 × 10−13.
The Azeotropic Distillation for Bioethanol Purification: The Effects of Entrainer Solvents
Authors: Sriana T , Sakti S , Dianpalupidewi T , Wahyudi A
Published: June 2020

Bioethanol is one of the most interesting biofuels in Indonesia. In the recent years, various research studies on bioethanol production have been reported. The main problem using bioethanol as alternative energy is the refining process. In this paper, we report on our effort to increase the purity of bioethanol. The effects of different entrainer combinations were investigated. Based on our study, we found that the double entrainers combination generated better ethanol purity compared to a single entrainer. Among the possible combinations of entrainer, the combination of 10% (v/v) n-Heptane on cyclohexane-n-heptane could increase ethanol purity up to 87.39%.
Impact Assessment of Coal Power Plant Using Life Cycle Assessment (LCA)
Authors: Wibawa B S S , Iswara A P , Boedisantoso R
Published: June 2020

The electricity production using coal starts with the process of transforming heat energy into mechanical energy which drives turbines and generators to produce electricity. These activities produce emissions that can cause environmental impacts. Air pollutants causing impacts generated by coal power plants are mainly CO2, CH4, N2O, SOx, and Particulate Matter (PM). These emissions may increase global warming and decrease air quality which affects humans and the environment. This study identifies the impacts that occur from the activities of electricity production with coal using the Life Cycle Assessment (LCA) approach. LCA is an analytical method that is used to evaluate and compare the environmental impacts of a product. Identification of environmental impacts was carried out using the SimaPro 8.5.2 software. The cycles of coal production activities analyzed include coal bunkers, coal mills, boilers, turbines, and generators. The results of emission calculation, obtained in the production process of the steam power plant boiler unit at one of the coal power plants in East Java, are as follows: 1,085 kgCO2/kWh; 1,01 × 10−5 kgCH4/kWh; 1,52 × 10−5 kgN2O/kWh; 3,18 × 10−4 kgSOx/kWh; 1,12 × 10−4 kgNOx/kWh; 1,19 × 10−5 kgPM/kWh.
A Study of Drinking Water Supply and Demand in Surabaya in the Year 2039
Authors: Pradypna F F , Marsono B D , Soedjono E S
Published: June 2020

This study of supply and demand of water in Surabaya City evaluates the equilibrium of domestic and non-domestic water demand with the existing supply so that the source flow rate can be prepared for the demand in the following 20 years. PDAM Surabaya has reached water service area of 96.67% and will increase to 100 percent in the following year as targeted by the Central Government. The method used was water balance of PDAM Surabaya planned for every five years until 2039. The result of this study showed the potential of raw water from Umbulan with 1,000 L/s and from Kali Brantas with 1,000 L/s. Projection for water demand for the first water balance in year 2024 resulted 15,037 L/s and there was a deficit of 3,062 L/s. The result of water balance in 2019-2039 showed that the supply would not fulfil the water demand.
Evaluation of Shear-Critical Reinforced Concrete Beam Blended with Fly Ash
Authors: Mooy M , Tambusay A , Komara I , Sutrisno W , Faimun  , Suprobo P
Published: June 2020

Results of an experimental investigation on shear-critical responses of small-scale reinforced concrete beams fabricated with normal concrete (NC) and concrete blended with supplementary materials using Class F fly ash (SMFA) are presented. The beams were reinforced with adequate stirrups as per requirement specified in design specifications. The beams were tested using Ohno beam testing setup to induce direct shear mechanisms across the shear plane. It was also intended to evaluate the shear capacity of a disturbed region (D-region) where the flexural moment was negligible. It was found that all beams fail in brittle shear manner, showing a significant increase of shear forces with a subtle increase in beam deflection. It was also found that the use of adequate stirrups could cease the localised crack formation. In overall results, it was found that the use of Class F fly ash as cement replacement was applicable because the response did not differ significantly.
Flexural Behaviour of a Reinforced Concrete Beam Blended with Fly ash as Supplementary Material
Authors: Oktaviani W N , Tambusay A , Komara I , Sutrisno W , Faimun F , Suprobo P
Published: June 2020

Two small-scale reinforced concrete beams, one made of ordinary Portland cement (NC) and the other blended with supplementary material using fly ash (SMFA), were investigated to gain insights into their flexural behaviour. Class F fly ash by 15 per cent of the mass of cement was added in the concrete mix of SMFA beam, enabling the reduction of cement usage. The specimens were designed under-reinforced having low steel bar ratio and were tested under four-point bending to failure. To ensure the beam failing in flexure, the M/Vd ratio of 3.2 was customary to allow the development of flexural cracks transpired over the centre span as the load further increased. Predictions incorporating manual calculation and computer simulation using Response-2000 were also performed and compared against the experimental data. The results showed that the NC and SMFA beams were generally equivalent in terms of load-deflection response, crack pattern, and mode of failure. Nonetheless, it should be marked that the load-carrying capacity of the SMFA beam was 22 per cent higher than that of NC beam, while the deflection of the SMFA beam was found to be significantly higher. Predictions from the manual calculation and computer simulation using Response-2000 were also in good agreement with the results obtained from the experiment.
Oriented membranes processes for facilitated extraction and recovery of some industrial dyes across polymer inclusion membranes containing Chitin as new extractive agent
Authors: Chaouqi Y , El Bouchti M , Ouchn R , Habibi Z , Cherkaoui O , Hlaibi M
Published: June 2020

In this study, we developed a polymer inclusion membrane (PIM) using the phase inversion technique, based on polymer supports polyvinylidene fluoride (PVDF) and polyvinylpyrrolidone (PVP), with chitin as extractive agent (EA). This PIM was used to study facilitated extraction and recovery processes of Astrazon Red FBL 200%, Blue P3R, Direct Turquoise FBL 400% and BEMACID Yellow N-TF dyes from simulated aqueous textile solutions. To explore the composition, structure and morphology of the developed PIM, both FTIR and SEM techniques were used. To explain the performance of the PIM and describe the mechanism of the process studied for the recovery of dyes from simulated wastewater, kinetic and thermodynamic models were also adopted, which are based on Fick’s laws and the saturation law of EA by the substrate (dyes). The overall data indicate that the used EA is effective for theses oriented processes, and the facilitated extraction of dyes is not depending on the pore size but on structures and interactions between the molecules of the EA and the dye.
Core-shell particles based on porous carbon@Fe3O4 for efficient removal of dyes from textile effluents
Authors: Anfar Zakaria , Ait El Fakir Abdellah , Jada Amane , El Alem Noureddine
Published: June 2020

The removal of textile toxic contaminants is an essential process to provide clean water to the increasing population rate. It requires a design of a selective material to adsorb dyes pollutants with stability, effectiveness and reusability. Regeneration efficiency and recovery extent (RCE) are one of the critical factors to measure the performance of the adsorption process. In this study, magnetic Core-shell beads based on porous carbon@Fe3O4 NPs with high specific surface area were successfully synthesized by simple Co-precipitation method. The structural, textural, chemical and morphological proprieties of the prepared materials were studied by XRD, FTIR, Raman spectroscopy, nitrogen adsorption-desorption, XPS, SEM and TEM. The adsorption kinetic and isotherm data were well fitted to the pseudo-second-order and Langmuir models. Magnetic particles exhibited an excellent ability to adsorb methylene blue (MB) from aqueous solutions with maximum MB adsorption capacity of 180.42 mg/g (porous carbon@Fe3O4-NPs powder) and 49.66 mg/g (magnetic Core-shell beads based on porous carbon@Fe3O4-NPs).

The synthesized core shell adsorbent showed good magnetic response, high regeneration efficiency with excellent recovery extent. We believe that in the near future these new magnetic Core-shell beads based on porous carbon@Fe3O4-NPs can be used as an alternative to solve the separation problem involving the material pollutant interfaces and can be commercialized as a benchmark adsorbent for the removal of toxic dyes.
Novel biohybrid aerogel composites based on cellulosic and cobalt metallic nanoparticles: efficient and recyclable catalysts for green reduction reactions
Authors: Idrissi Nouaamane EL , Mouden Aicha EL , Kaddami Hamid , Belachemi Larbi
Published: June 2020

In this study, a cellulose nanomaterial (Cellulose nanofiber, CNF) was employed as solid support and stabilizing agent for the highly active cobalt nanoparticles via in situ green and facile synthesis as an environmentally benign supported catalyst. The process of preparation involves the reduction of cobalt precursors on the surface of CNF in ambient conditions with the presence of NaBH4. The structure of the synthesized organic-inorganic hybrid Co/CNF was characterized by field emission scanning electron microscopy, energy dispersive spectroscopy and Fourier transform infrared spectroscopy. The hybrid aerogel nanocomposite Co/CNF demonstrated excellent catalytic activity for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in water with NaBH4. Even with a very low amount of catalyst and was found to be good enough to achieve 100% reduction of 4-NP with a higher reaction rate (in 8 min). The heterogeneous nanocomposite catalyst was easily isolated from the reaction mixture by simple filtration and reused 5 times without significant loss of its catalytic activity.
Synthesis of BaCO3 particles tailored by carboxylated cellulose fibers
Authors: Jada A , Ladhari S , Jradi K
Published: June 2020

The present work deals with the use of carboxylated cellulose fibers, thereafter called Cellulose Nano Fibers (CNF), as eco-friendly materials and sustainable resources for remediation and valuation, of metal ions present in contaminated water. Barium divalent cation (Ba2+) is among the most common heavy metal pollutants found in water such as arsenic, cadmium, chromium, copper, nickel, lead and mercury. Thus, CNFs containing carboxylate groups were first prepared by the oxidation of the cellulose fibers using the NaOCl-NaBr-TEMPO system, and thereafter, they were used as adsorbent for Ba2+ ions removal from BaCl2 aqueous solutions. Such Ba2+ removal was evidenced by the decrease of both the CNF surface charge and the CNF absorbance, upon the addition of the metal divalent cation, BaCl2 to the CNF aqueous dispersions. It is shown that the interaction occurring between the fiber carboxylic groups and the positively charged metal ions, Ba2+, occurs via electrostatic interactions and leads to the CNFs –Ba2+ complex formation. In the second part of this work, we investigated the effect of the CNFs on the crystallogenesis of barium carbonate particles, BaCO3. Thus, the CNFs aqueous solution was first added to barium chloride BaCl2 solution, and the mixture was stirred for a period of time (complexation time), prior the addition of sodium carbonate (Na2CO3) solution. The precipitation of barium carbonate particles in the presence of CNFs occurred at ambient temperature, in a water-jacketed Pyrex glass vessel. Finally, the resulting Barium carbonate-CNFs composites were examined by various methods such as Scanning Electronic Microscopy (SEM), and X-ray Diffraction. From the SEM data, two BaCO3 morphologies were observed, dendritic and bent or rods particles, respectively, in the absence and in the presence of the CNFs.
A Comparative study between TiO2and ZnO photocatalysis: Photocatalytic degradation of textile dye
Authors: Kouhail Meriem , Elberouhi Kaoutar , Elahmadi Zakia , Benayada Abbes , Gmouh Said
Published: June 2020

The present study involves the photocatalytic degradation of three dyes: Reactive Bézactiv yellow (RBY); Direct Triamine yellow86 (DY86); and Methyl Orange (OM) with different structure and containing different substitute groups. The photocatalytic degradation has been investigated using two types of synthesis semiconductors namely titanium dioxide (TiO2) and zinc oxide (ZnO), as photocatalyst, in aqueous solution under solar irradiation.

The synthesized nanoparticles were characterized by: Fourier Transform Infrared (FTIR), X-ray diffraction (XRD), UV visible diffuse reflectance spectroscopy and scanning electron microscopy (SEM). The progress of photocatalytic degradation of the commercial dyes, has been observed by monitoring the change in substrate concentration of the compound employing High-Performance Liquid Chromatography (HPLC). The photodegradation rate was determined for each experiment and the highest values were observed for ZnO.
Value added creation with advanced mass-customized textile labels
Authors: Barteld M. , Gebhardt R. , Siegel F. , Portsch U.
Published: June 2020

Process-oriented value-added creation in textile networks for mass customization tries to close the backlog and the research gap for mass customization in textile networks by using IT-based security labels according to the research projects “Profund” and “TechProTex - Etikett”. Special attention will be paid to the complex product identification and tracking to both B2B and B2C markets. By using the developed platform, the cycles for the new development of a product are significantly reduced. New labels printed with various identification features and QR Code are available in four security levels. The identification is counterfeit-proof, customer-friendly as well as the basis for future-oriented cross-company textile value chains.
Polypyrrole coated hematite sand (HS@Ppy) as a new catalyst for degradation of organic dye based on sulfate radicals
Authors: Ait El Fakir A , Anfar Z , Jada A , El Alem N.
Published: June 2020

The present work deals with the degradation in water of organic dye such as Orange G by using sulphate radicals as oxidant. Thus, a new catalyst based on polypyrrole coated hematite sand particles, (HS@Ppy) was first prepared. Thereafter, sulphate radicals were produced by activating the persulfate (PS) agent in the presence of the HS@Ppy catalyst. The resulted HS@Ppy/PS system was finally mixed with Orange G aqueous solutions for dye degradation. The data indicate that polypyrrole shell coating amount in the HS@Ppy particles has a great influence on the Orange G degradation. The HS@Ppy/PS system exhibited the highest OG removal rate (the removal rate is 98 % after 15 minutes of reaction) as compared to the various systems: PS alone, HS@Ppy alone, or HS/PS alone.
Improved piezoelectric properties of PLA/PZT hybrid composite films
Authors: Chakhchaoui N , Frahan R , Eddiai A , Meddad M , Cherkaoui O , Boughaleb Y , Van Langenhove L
Published: June 2020

Piezoelectric polymer-ceramic composites are promising materials for Sensing, Wireless electronics and actuating applications. We report the fabrication of highly piezoelectric biocompatible films containing lead zirconate titanate (PZT) ferroelectric ceramic particles dispersed in poly lactic acid (PLA) with different volume fractions using a solvent cast technique. The properties of the piezoelectric polymer-ceramic films were investigated by Fourier transform infrared spectrometry (FTIR) and field emission scanning electron microscopy (FE-SEM). In the FTIR spectra appear a large number of absorption bands which are attributed to the phases from PLA matrix confirming the total embedding of PZT filler into the matrix. The SEM results showed a good distribution of fillers in the matrix. We find that the added PZT imposes a significant effect on the α–β phase transformation. Our finding can lead to extraordinary enhancement of piezoelectric properties for the PLA/PZT composite films. Keywords: Piezoelectric polymer-ceramic, PLA, PZT, solvent cast technique.
Applications of smart textiles in occupational health and safety
Authors: Dolez Patricia I. , Decaens Justine , Buns Thibaut , Lachapelle Dominic , Vermeersch Olivier
Published: June 2020

Smart textiles can detect, react, and adapt to various stimuli; they offer promising perspectives in occupation health and safety (OH&S). The objective of this study was to identify technologies, solutions, and products based on smart textiles and flexible materials that could have an application in OH&S and provide a response to some of the current needs. The collection of information included three aspects: 1) technologies, solutions, and products involving smart textiles and flexible materials found in the literature over the period 2000-2016; 2) issues in OH&S associated with traditional textiles and flexible materials; and 3) current or foreseeable problems associated with the use of smart textiles and flexible materials in OH&S. Issues with traditional textiles and flexible materials in OH&S were cross-matched with technologies, solutions and products relevant to smart textiles and flexible materials. This allowed us to propose short, mid, and long-term developments that could provide a response to some of the current needs in OH&S. The analysis shows that smart textiles and flexible materials offer a promising response to current challenges observed with PPE used in OH&S. With manufacturing and R&D capabilities available in various countries, the feasibility of development of these solutions is very high.
Sustainable wool insulation textile products - an opportunity for entrepreneurial initiatives in Romania
Authors: Ghițuleasa Pyerina C , Cărpuș Eftalea , Dorogan Angela , Bulacu Cezar , Enciu Ana
Published: June 2020

The wool processing sector in Romania experienced a regression in terms of fiber quality after 1989, caused by a combination of factors: uncontrolled crossbreeding, low area and low quality pastures and lack of support for sheep breeders. As a result, the spin ability limit of the Romanian wool has decreased, as well as the possibility of using it in the textile industry, in the conditions of increasing demand for fine fabrics and knitwear, leading to the closure of many traditional textile companies and the use of imported wool. Under these circumstances, the use of the Romanian wool for related fields such as construction is much more important, as an efficient and viable alternative for recovery and an alternative for revitalization of several economic sectors. The paper presents aspects regarding the textile valorization of the thick Romanian wool varieties in order to produce materials with the role of insulation and sealing, in the field of eco-friendly constructions.
Application of Fe3O4 nanoparticles on cotton fabrics by the Pad-Dry-Cure process for the elaboration of magnetic and conductive textiles
Authors: Nadi Ayoub , Jamoudi Sbai Sara , Bentiss Aziz , Belaiche Mohammed , Briche Samir , Gmouh Said
Published: June 2020

In the present study, a magnetic textile was developed by the application of Iron nanoparticles on cotton fabrics. For this, Fe3O4 nanoparticles were synthetized by reverse co-precipitation. Then, the obtained magnetic nanoparticles were applied on cotton fabrics using the Pad-Dry-Cure process. Magnetic behavior of iron oxide nanoparticles was investigated to study magnetic properties by the VSM analysis. Moreover, the effect of iron oxide nanoparticles on the cotton fabrics noticed on the thermal behavior has been studied by thermogravimetric analysis. The thermal stability of cotton fabrics is positively affected after the treatment using Fe3O4 nanoparticles. Finally, electrical properties were studied to measure the fabrics conductivity according to the AATCC.
Development of E-textile electrodes: washability and mechanical stresses
Authors: Zaman S U , Tao X , Cochrane C , Koncar V
Published: June 2020

E-textile, as a growing field in the current era, gained a lot of attention and currently, some tremendous outcomes of these fields can be seen. They are being used in specific functional requirements depending on application types in various fields including medicals, military, safety and leisure, etc. E-textile structures can contain various elements including wearable motherboards, sensors, electrodes, antennas, actuators, and power sources. These components are integrated with available textile materials according to their usage requirements. For the use of e-textiles in daily life and to make them popular with consumers, these products must be reliable and reusable for a prolonged time. The e-textile market has developed rapidly in the past few years especially in the applications of wireless communication, monitoring, gaming, and data collection. Among these applications, products related to health monitoring gained attraction due to their importance in diagnosing the real-time health problems of the customers. The current study is focused on wearable ECG electrodes to make them reliable and washable. Embroidered electrodes are prepared and washed multiple times to check the washing impact on ECG signals performance. Available mechanical tests are performed to predict equivalent damage as during washing. Hence these predictions, in the coming future, can be used to check, analyse and predict the washability of e-textile prototypes at different stages of manufacturing without actually washing of samples for a multiple numbers of wash cycles.
Integration of Lean management for the growth of Green manufacturing
Authors: Jbira K , Hlyal M , El Alami J
Published: June 2020

The transition to green products or operations has forced companies to find solutions to balance their activities, services and products. This has increased business challenges due to rising costs. The quest for a way to reduce costs has become a necessity for companies. In this article, we will shed light on several definitions given by different researches, and we will focus on the relationship between lean and green, see if we can combine them and discuss the relationship between them. We will also investigate the benefits for the industry, especially the manufacturing sector. Furthermore, we will answer how can the integration of lean management contribute to the growth of green manufacturing.
Effect of water immersion, laundering, and abrasion on the conductivity of reduced graphene oxide coatings on aramid fabrics
Authors: Cho Chungyeon , Elias Anastasia L , Batcheller Jane , Chung Hyun-Joong , Dolez Patricia I
Published: June 2020

Opportunities for developing end-of-life sensors for fire resistant fabrics are explored using reduced graphene oxide coatings on textiles. Fire resistant fabrics are known to experience significant losses in performance over time. Large reductions in mechanical properties have also been recorded when these fabrics were subjected to accelerated aging conditions simulating the use in service. In addition, the fabric loss in performance may exceed the safety requirement threshold before any sign of damage is visible to the naked eye. Electrically conductive coatings and tracks were prepared on an m-aramid woven fabric using graphene oxide that was further reduced. The preparation technique allowed wrapping the individual aramid fibers with rGO sheets. No significant change in sheet resistance was recorded after up to 120h of immersion of the rGO-coated fabric specimens in water. An increase in resistance after 10 accelerated washing cycles was measured on the rGO-coated specimens prepared with 5 coating cycles while no significant effect was detected for specimens prepared with 10 and 15 coating cycles. Under abrasion exposure, the electrical resistance of rGO tracks increased gradually until 150 cycles, after which the conductivity dropped abruptly. These results show the potential of reduced graphene oxide applied as a coating on m-aramid fabrics to prepare end-of-life sensors for fire resistant fabrics.
Quantification of the silver content of a silver-plated nylon electrode according to the nature of the laundering detergent
Authors: Gaubert V , Gidik H , Bodart N , Koncar V
Published: June 2020

In this study, the loss of the silver content was determined accurately when silver plated nylon electrodes dedicated to a measurement of human physiological parameters are washed with detergents containing bleaching agents. Thermogravimetric analysis and morphological observations based on SEM images have been conducted to determine the quantity of remaining silver on the electrodes. This loss of the conductive silver content is critical for the electrodes as it reduces their electrical conductivity and therefore their capacity to be used to measure either low voltages from the skin generated by ECG (electrocardiograph), EMG (electromyograph) or even EEG (electroencephalograph) or to determine the bioimpedance of human body or specific organs. The reduced surface conductivity leads also to a very complex contact impedance between the electrodes and the skin and therefore to their high sensitivity to any movement. This also results in noisy signals that are not useful to monitoring of physiological parameters and the concept of predictive medicine.
The predictive development of the electroconductive textile using artificial neural network
Authors: Aileni R M , Chiriac L , Surdu L
Published: June 2020

This paper presents several aspects concerning the predictive development of the electroconductive textiles based on the artificial neural network. The electroconductive textiles have been obtained using thin film coating with metal micro/nanoparticles and printing. For these textiles, we have made a mathematical model and we optimized dependent parameters, such as pH, dispersion conductivity, mass, thickness, air permeability, and surface resistance, by neural networks based on optimization algorithm Levenberg-Marquardt back propagation. The methodology consists in developing three feed-forward neural networks that are capable of estimating the surface conductivity of the textile materials, based on six parameters obtained in the laboratory. Moreover, this work is significant in the development of surfaces with conductivity directed to obtain the antistatic, electroconductive textiles or insulators, starting from input matrix values.
Improvement of enzymatic antifelting treatment of wool fiber and its effect on dyeing with juglone from a common walnut plant
Authors: Chemchame Y , Benzbir H , Kachachi A , El Bouchti M , Kharchafi A
Published: June 2020

The objective of this study is to assess an enzymatic effect on the antifelting treatment of yarn and wool fabric. Enzymes, namely, the proteases cardosines A and B, are extracted from the flowers of the cardoon (Cynara cardunculus L) plant. Several conditions of enzymatic treatment are studied in order to optimize the antifelting process and improve shrink proofing. The optimal process is at 40 °C for 2 h in an alkaline medium at pH 10. The results show that the shrinkage of 16.8% for untreated yarn is reduced to 0%, while the shrinkage of 10% for the untreated fabric is reduced to 5%. In addition, the antifelting treatment increases the dye absorbance of a walnut stain (common walnut plant) on the yarn and wool fabric, although the fixation dye rate is decreased. Post oxidation is tested in order to improve the fixation dye rate and the washing fastness of juglone on the wool yarn and fabric.
Empirical assessment of critical success factor of lean and six sigma in the Moroccan automotive industry
Authors: Elboq Raja , Hlyal Mustapha , El Alami Jamila
Published: June 2020

Lean manufacturing (LM) and Six sigma (SS) are two methods of continuous improvement that became essential in several industrial sectors. These approaches interest the researchers and also the business managers. Thus, LM and SS success that can be involved simultaneously and systematically is based on a set of Critical Success Factors (CSF). First, we extracted the CSFs discussed in the literature. Then, these CSFs have been projected to those used in the Moroccan automotive industry. For this purpose, we adopted a qualitative research methodology using structured interviews with 12 experts from the Moroccan automobile industry. Through this study, LM and SS implementing characteristics were revealed. Thus, we performed, based on CSF importance and maturity, a bi-dimensional scan that describe Lean manufacturing (LM) and Six sigma (SS) implementation within Moroccan automotive industry.
Physical Internet: Literature review and research opportunities
Authors: Jharni K , Hlyal M , El Alami J
Published: June 2020

With an increasingly rich and personalized product offering, the digitalization of the commercial relationship and the opening of world borders, commercial transactions have never been this important. And so are the requirements in terms of time and availability that logistics and supply chains should fulfill. These latters still support the growth of the economic exchanges but struggle to find a disruptive model capable of meeting more requirements with sustainable economic, environmental and social approaches. Several initiatives are under consideration, including the Physical Internet, which offers an abstract, generic and global framework for managing the logistics chain of physical objects. In this article, we review the literature of the Physical Internet following the qualitative content analysis method. We found that although the number of contributions is limited, the contribution grows at a rate of 25% every year on average. We analyzed the contributions after categorizing them to find that the governance (management and community) of the Physical Internet from a global perspective is not covered enough by the current literature which can be an opportunity for future research.
An enhanced power harvesting from woven textile using piezoelectric materials
Authors: Chakhchaoui N , Jaouani H , Farhan R , Eddiai A , Meddad M , Cherkaoui O , Van Langenhove L
Published: June 2020

The field of power harvesting has experienced significant growth over the past few years due to the ever-increasing desire to produce portable and wireless electronics with extended lifespans. The present work aims to introduce an approach to harvesting electrical energy from a mechanically excited piezoelectric element and investigates a power analytical model generated by a smart structure of type polyvinylidene fluoride(PVDF) that can be stuck onto fabrics and flexible substrates. Moreover, we report the effects of various substrates and investigates the sticking of these substrates on the characterization of the piezoelectric material.
Application of make/use platform for sustainable fashion design
Authors: Scerbaka A
Published: June 2020

The article explores the challenges of the clothing industry by focusing more on textile and the clothing industry interactions to reduce industry fabric waste and promote sustainability. The main research focus is to gather and analyze various possibilities for fashion designers to achieve zero waste designs in nowadays context. The introduction gives insights on the problems of the fashion industry and formulates the purpose and tasks of the research work, identifies and unpacks problems and also justifying the relevance of this study. Attention is drawn to the analysis of pre-consumer waste generation in the clothing production processes and the ways to drive the industry towards sustainability. The rich source of zero waste design ideas can be found in the ethnographic costumes’ solutions. Integrating historical experience with the methods and approaches defined by the 21st century designers can significantly reduce or even avoid fabric pre-consumer waste. The paper will reflect the collected principles of achieving zero waste fashion by using Make/Use platform, an open source system for zero waste user, modifiable fashion practice. The methods of Make/Use platform are described, and its practical application is illustrated through the zero-waste coat design. Premeditate changes are based on the fashion designer’s thinking encouraging minimizing the waste in the early stages of the costume idea development, providing a sensible use of the fabric with its silhouette and design specificity.
The esterification and dyeing properties of raw wool fibers
Authors: Akoh Fatine , Mehdi El Bouchti , Cherkaoui Omar , Tahiri Mohamed
Published: June 2020

The reaction of raw wool fibers (RWFs) with methanol, ethanol and n-propanol catalyzed by HCl has been found to modify carboxyl side chains. The effect of esterification of wool on its behavior toward acid dye has been studied. Esterified wool fibers (EWFs) showed an increase in acid dye affinity, and dyed esterified wool shows an increase in dye fastness to washing. The process of esterification with alcohols/hydrogen chloride caused some modification of carboxyl and other groups. The surface modification of wool fibers was determined by FTIR, modification rate of carboxyl groups and the acid dye distribution of RWFs and EWFs with various alcohols was evaluated by Datacolor.
Microencapsulation for improved mosquitoes’ repellent efficacy of cotton fabrics
Authors: Grancaric A M , Laird K , Botteri L , Shen J , Laatikainen K
Published: June 2020

In recent years, mosquitoes that can transfer viruses causing vector-borne diseases, such as dengue fever, chikungunya, Zika and West Nile virus have dramatically increased and reached Europe. In 2018, a higher number of 1503 human cases were reported in the EU/EEA and EU neighbouring countries. The current research was involved in the development of mosquito repellent cotton fabrics with natural essential oils and further improvement of mosquitoes repellent efficacy by microencapsulation of repellents on cotton Fabrics. The repellents efficacy for Anopheles spp. is calculated by using the results of WHO modified test method CTD/WHO PES/IC/96.1. Mosquito-repellency of the treated cotton fabrics against Aedes aegypti mosquito species were tested by using Y-tube Olfactometer. SEM images of treated cotton fabrics were also represented in this paper.
Comfort-related properties of the seersucker woven fabrics
Authors: Matusiak Malgorzata
Published: June 2020

Clothing creates a barrier between the human body and surroundings. Dependably on the predestination, it protects the human organism against outer factors dangerous for human health and safety. From the point of view of human health and well-being, the comfort-related properties of clothing are very important. The aim of presented work is to investigate the seersucker woven fabrics in the range of their comfort-related properties and to analyse an influence of the structure of fabrics on their properties. 9 variants of the seersucker woven fabrics were the objects of the investigation. The fabrics were manufactured from cotton yarns. In the experimental fabrics, 3 kinds of repeat of the seersucker pattern and 3 kinds of weft yarns were applied. Measurements of the comfort-related properties of the investigated fabrics have been performed using the following testing devices: Alambeta, Permetest and Moisture Management Tester. Results showed that both structural factors of fabrics: repeat of the seersucker effect and a kind of weft yarn influence the thermal insulation properties of the fabrics being investigated. Especially, the repeat of the seersucker effect influences the thermal conductivity, thermal absorptivity and thermal resistance in the statistically significant way at the probability level p = 0.05.
Dynamic colour in textiles: combination of thermo, photo and hydrochromic pigments
Authors: Cabral I , Souto A P
Published: June 2020

Colour Change Materials are a class of smart materials that present distinct characteristics relative to conventional pigments and dyes. When exposed to a given stimulus, these materials exhibit reversible chromatic changes, allowing the introduction of dynamic and interactive qualities to textiles. Currently, the combination of various chromic materials presents an under-developed area. The objective of this research is to study the integration and combination processes of different types of dynamic colourants in textiles, namely thermo, photo and hydrochromic pigments. The experimental work conducted demonstrates the effect of screen printing variables in textile chromatic qualities, being the variables set: screen mesh count, magnetic field of the screen printing table, printed layers (number and process) and pigments’ combination method – overprinting and combination in the screen printing paste. The results attained also highlight design possibilities to further research colour change effects and outline a methodology to explore and design screen printed textiles with multi-sensitive qualities.