bluuebunny/crossref_metadata_2025 huggingface dataset:
Hard X-ray omnidirectional differential phase and dark-field imaging
Authors: Wang Hongchang , Sawhney Kawal
Published: February 2021

Significance

We demonstrate an approach to generate a new type of X-ray imaging mode, which is called omnidirectional X-ray differential phase imaging. The proposed method enables us to detect the subtle phase changes in all directions of the imaging plane, which complements conventional X-ray imaging methods with information that they cannot provide. Importantly, the omnidirectional dark-field images can also be simultaneously retrieved for studying a wide range of complicated samples, particularly strongly ordered systems. The extracted information will not only provide insights into the microarchitecture of materials, but also enrich our understanding the macroscopic behavior. The presented technique could potentially open up numerous practical imaging applications in both biomedical research and materials science.
Management of Kratom Dependence with Buprenorphine/Naloxone in a Veteran Population
Authors: Lei Jamie , Butz Amy , Valentino Natalie
Published: February 2021

Background

Kratom is a substance that when ingested produces an opioid-like effect. As kratom continues to gain popularity, increasing numbers of cases of addiction, dependence, and adverse events have been reported, as well as an increase in mortality associated with its use. George E. Wahlen Department of Veterans Affairs Medical Center has been using buprenorphine/naloxone for the treatment of kratom withdrawal and dependence in both primary care and specialty addiction treatment settings in the Veteran population.

Cases

We present three cases that describe the use of buprenorphine/naloxone for kratom dependence. For each case, we describe the withdrawal symptoms from kratom, induction and long-term maintenance on buprenorphine/naloxone in kratom dependence, the impact of polysubstance use disorders in management of kratom dependence, and the use of urine drug screens for kratom alkaloids during treatment.

Discussion

This case series demonstrates that patients with kratom dependence can effectively be treated with buprenorphine/naloxone. It appears that it is safe to induce buprenorphine/naloxone as early as eight hours after last kratom use and maintenance dosing for kratom use was similar to maintenance doses used in opioid use disorder. Prolonged and continued withdrawal symptoms were reported despite treatment with buprenorphine/naloxone and multiple daily doses of up to 24mg per day may be beneficial for prolonged withdrawal symptoms and for cooccurring pain. Polysubstance use with kratom dependence may require higher levels of care and higher doses of buprenorphine/naloxone. Urine drug screens may be best practice for monitoring kratom alkaloids concentrations and facilities that utilize buprenorphine/naloxone to treat kratom dependence should have testing available. Further research is needed on the impact and the treatment of kratom dependence.
New vision for the soliton solutions to the complex Hirota-dynamical model
Authors: Bekir Ahmet , Zahran Emad H M
Published: February 2021

In this paper, the nonlinear complex Hirota-dynamical model NLCHM in which the third derivative term represents the self-interaction in the high-frequency subsystem is established. This model plays a vital role in plasma physics because there are agreements between the self-interaction in the high-frequency and the well- known self-focusing effect in plasma. Many soliton solutions to this equation model have been achieved perfectly using the solitary wave ansatz method (SWAM). Furthermore, in the same vein and related subject the extended simple equation method (ESEM) has been applied perfectly to achieve new perception of soliton solutions to this model. A good isomorphic between the achieved results and that achieved previous by other authors have been listed.
Spectral and temporal characterization of sleep spindles—methodological implications
Authors: Gomez-Pilar Javier , Gutiérrez-Tobal Gonzalo C , Poza Jesús , Fogel Stuart , Doyon Julien , Northoff Georg , Hornero Roberto
Published: February 2021

Objective. Nested into slow oscillations (SOs) and modulated by their up-states, spindles are electrophysiological hallmarks of N2 sleep stage that present a complex hierarchical architecture. However, most studies have only described spindles in basic statistical terms, which were limited to the spindle itself without analyzing the characteristics of the pre-spindle moments in which the SOs are originated. The aim of this study was twofold: (a) to apply spectral and temporal measures to the pre-spindle and spindle periods, as well as analyze the correlation between them, and (b) to evaluate the potential of these spectral and temporal measures in future automatic detection algorithms. Approach. An automatic spindle detection algorithm was applied to the overnight electroencephalographic recordings of 26 subjects. Ten complementary features (five spectral and five temporal parameters) were computed in the pre-spindle and spindle periods after their segmentation. These features were computed independently in each period and in a time-resolved way (sliding window). After the statistical comparison of both periods, a correlation analysis was used to assess their interrelationships. Finally, a receiver operating-characteristic (ROC) analysis along with a bootstrap procedure was conducted to further evaluate the degree of separability between the pre-spindle and spindle periods. Main results. The results show important time-varying changes in spectral and temporal parameters. The features calculated in pre-spindle and spindle periods are strongly and significantly correlated, demonstrating the association between the pre-spindle characteristics and the subsequent spindle. The ROC analysis exposes that the typical feature used in automatic spindle detectors, i.e. the power in the sigma band, is outperformed by other features, such as the spectral entropy in this frequency range. Significance. The novel features applied here demonstrate their utility as predictors of spindles that could be incorporated into novel algorithms of automatic spindle detectors, in which the analysis of the pre-spindle period becomes relevant for improving their performance. From the clinical point of view, these features may serve as novel precision therapeutic targets to enhance spindle production with the aim of improving memory, cognition, and sleep quality in healthy and clinical populations. The results evidence the need for characterizing spindles in terms beyond power and the spindle period itself to more dynamic measures and the pre-spindle period. Physiologically, these findings suggest that spindles are more than simple oscillations, but nonstable oscillatory bursts embedded in the complex pre-spindle dynamics.
Molecularly Imprinted Polymer (MIPs) Nanomaterials Modified as Absorbing Cholesterol
Authors: Sabrina Nadia , Ulianas Alizar , Yulkifli  , Nurlely
Published: February 2021

Nanomaterial Molecularly Imprinted Polymer (MIPs) from Methacrylic acid (MAA), Ethylene glycolmethacrylate (EGDMA), 2,2-Dimetoksi-2-Phenyliacetonephenon (DMPP) and cholesterol have been successfully synthesized by using the photopolymerization method. MIPs has been characterized by Scanning Electron Microscope (SEM) to see the physical shape and size of his fingers, while FTIR was used to analysis of the cholesterol extraction and re-extraction in MIPs. The absorption capacity of MIPs against cholesterol in solution was analyzed by the calorimetry method using Liebermann-Burchard reagent. MIPs absorption of cholesterol in the blood was analyzed by using Easy Touch GCU. The results of SEM analysis showed that MIPs were spherical with a diameter of 1,038µm to 2.702µm. While FTIR analysis shows that MIPs cholesterol can be extracted and re-extracted in MIPs. MIPs absorption against cholesterol in solution is 84.49% for 0.30 grams of MIPs and time of absorbance is 30 minutes. While the absorption of MIPs against cholesterol in the human blood is 41.19%, it shows that pores and active groups of MIPs are able to absorb and selectively to cholesterol molecules.
Molecular encapsulation of bioactive molecules of Ruku-Ruku leaves (Ocimum tenuiflorum Linnen) as a preliminary stability study
Authors: Parbuntari H , Etika S B , Delvia E
Published: February 2021

Ruku-ruku (RK) leaves in West Sumatra contain various essential oil which is known as secondary metabolites. They could influence the use of these bioactive properties as medicinal compounds. Essential oils have unstable properties to oxidation, evaporation, or chemical reaction. One method for maintaining compound stability is the encapsulation method. This study performs the encapsulation of RK in β-CD. By using the co-precipitation method, this study produces pure crystal with 62,5% of the efficiency of encapsulation. The diffraction pattern of β-CD: RK identified the crystals pattern with a sharp peak of diffraction and most of these peaks showed patterns of diffraction in β-CD. The absorption intensity of the pure CD was only 2.5 but after inserting the RK in its cavity the intensity increased to 2.7. It shows that there is an interaction between the non-covalent part of β-CD and the essential oil molecules. Furthermore, the inclusion complex β-CD: RK is more stable as the increase in the boiling point of the ICs in the range of 282-289°C.
The Effect of Multiple Electrode Pairs to Electricity Potential of Ceramic-Based and Tempe Waste Microbial Fuel Cell
Authors: Sejati Emut Sukma , Sudarlin
Published: February 2021

Ceramic is low-cost separator membrane has widely applied in dual-chambered Microbial Fuel Cell (MFC). Its big pores and other chemical and physical advantages make it suitable to substitute expensive exchange separator membranes. The purpose of this study is to enhance electricity of ceramic-based microbial fuel cell by using various number of carbon electrode pairs. This study uses tempe waste as anolyte and KMnO4 as its catholyte to gain electricity. Three variety of electrode pairs data of electricity result is processed statistically to examine significant difference of voltage, current, and power density as parameters. The result of this study shows that electricity of three-electrode pairs has a higher average of power density with the number 1447,91 mW/m2, the difference between three and two electrode pairs is around 588 mW/m2 and between three and one electrode pairs is 910 mW/m2. It has significant difference between one, two, and three-electrode pairs in the parameters.
Optimization of hexavalent chromium ion adsorption using natural silica modified with DMA (Dimethylamine) by batch method
Authors: Weni Nora Kemala , Oktavia Budhi
Published: February 2021

Heavy metals are the most dangerous source of pollution for environmental systems because they have non-biodegradable, toxic, and even carcinogenic properties even in low concentrations (ppm). Usually metals are insoluble, precipitated, dissolved, absorbed, inorganic, reduced, oxidized, and free of metals. One of the heavy metals that can cause negative effects on humans and living things is chromium ion. One way to overcome chromium metal in waste is to absorb it with DMA modified silica adsorbent. The adsorption of chromium (VI) from aqueous solutions was examined at various pH, contact times, and initial Cr (VI) concentrations. Langmuir adsorption isotherm yields a regression coefficient R2 = 0.9807. In the initial conditions Cr (VI) 100 mg L-1, pH 2.0 with stirring for 90 minutes, the maximum adsorption capacity of Cr (VI) was 1,024 mg g-1. In this study, researchers used natural silica modified with dimethylamine as an adsorbent for the adsorption of Cr (VI) ion, GPTMS (glycidoxypropyltrimethoxilane) as an intermediate or bridge connecting silica with DMA (modifying compound).
Hydrophobic Pocket of SARS-Cov-2 Spike Glycoprotein are Potential as Binding Pocket
Authors: Fitri A , Basultan H , Iryani
Published: February 2021

Coronavirus disease 2019 (COVID-19) caused by SARS-Cov-2 was recently spread all over the world. Spike glyprotein of SARS-Cov-2 (SARS-Cov-2 S-glycoprotein) is the main agent for host cell recognition. Finding the potential of binding pocket of S-glycoprotein may help to find the specific anti-coronavirus drug. Here we analysed potential binding pocket of SARS-Cov-2 Spike-glycoprotein which is suitable for anti-SARS-Cov-2. In pursuit this aim, dogsitescorer, site finder, and DEPTH were used for binding pocket prediction. Molecular interaction protein-ligands were performed using MOE 2009.10. Based on pocket prediction by Dogsitescorer, there are seven out of eleven pockets which have druggability score above 0.8. Molecular interaction studies revealed that interaction between six potential pockets and ligands resulted in negative scores at all. Our result shows that pocket_4 and pocket_6 are located on upper of SARS-Cov-2 S-glycoprotein and have big volume, 878.94 and 683.05 (Å3) respectively, yet lower number of hydrogen bond. Hydrophobic pocket zero, three, and five which is located in the middle of S-Glycoprotein have high number of interaction. These suggest that hydrophobicity of pocket and both upper and middle positions of S-Glycoprotein pocket are considered for developing anti-coronavirus drugs. We propose that hydrophobic pocket of SARS-Cov-2 S-glycoprotein is important for drug design.
Effect of Using Guided Inquiry-Based Chemical Bonding Modules on Student Learning Outcomes
Authors: Iryani  , Bayharti  , Iswendi  , Putra Regi Fadila
Published: February 2021

This Study is a continuation of Study on the development of guided inquiry-based chemical bond modules that have been tested for validity and practicality, but have not yet been tested for its effects. This study purposed to reveal the influence of using guided inquiry-based chemical bonding modules on the learning outcomes of class X students of SMAN 4 Padang and SMAN 9 Padang. The data of the two schools of them are normally distributed and homogeneous. T-test results at the significant level of 0.05, namely t-count (1.79) > t-table (1.67) on SMAN 4 Padang and (2.93) > t-table (1.66) on SMAN 9 Padang. Based on the analysis it appears that student learning outcomes using the guided inquiry-based chemical bond module is increase significantly.
Cross-sectional approach for diagnosing student’s learning progression in relation to pre-requisite knowledge of buffer solution
Authors: Fitriza Z , Aini F Q , Handayani P
Published: February 2021

Buffer Solution is one of the complex concepts in chemistry since it involves many prerequisite concepts such as acid and base, chemical equilibrium, and stoichiometry. These concepts also need sequent students’ understanding of the chemical equation, chemical nomenclature, and atomic symbol. Their difficulty in comprehending prerequisite knowledge will affect the learning progression. This research aims to diagnose learning progression and the causes of the learning progression block of senior high school students on the buffer solution. Learning progression of 82 X grade, 80 XI grade, and 80 XII grade students were identified by a structured diagnostic test of chemistry using a cross-sectional approach. This research figure out that the learning progression of the student was not as expected since they cannot mastering buffer solution well particularly in buffer solution component, pH of buffer solution, and pH maintaining mechanism because of their difficulty in understanding chemical equilibrium and ionization reaction.
The Development and Validity of CPS-Based Assessment Instrument for Critical Thinking Ability on Stoichiometry Materials
Authors: Agustini  , Rery R U , Anwar L
Published: February 2021

Education at schools, especially high schools, has not been handled so well that critical thinking skills of the high school graduates are still relatively low. An assessment is necessary to find out whether the on-going teaching and learning process has achieved the stated learning objectives. Thus, it is necessary to develop an instrument that can evaluate the students’ critical thinking abilities. This study aimed to determine the validity of CPS-based assessment instrument for students’ critical thinking skills on stoichiometry materials. Problem Solving-based learning is one of the learning methods recommended by the government, where the learning process emphasizes the independence of students in solving problems. The assessment instrument was developed to measure students’ critical thinking skills based on 12 indicators of critical thinking according to Ennis and the characteristics of CPS according to Vidal, namely finding problems in general, finding facts, clarifying problems, expressing opinions, finding solutions and implementing them. The method of development adapted from Borg & Gall Model which consists of 10 development steps. However, this study was conducted only in three stages, namely preliminary research and information gathering, planning, and development of the initial product. The results of this study indicated that the CPS-based assessment instrument fulfilled the validity requirements, not only material validity but also language and construct validity. This study was expected to produce a valid instrument so that it could be used to assess the students’ critical thinking ability.
Development of A Test Instrument to Measure Hots and Cognitive Knowledge in Biology
Authors: Septiani V , Paidi
Published: February 2021

SKL of primary and secondary education set each graduate have HOTS (analysis, evaluation, and create) and cognitive knowledge (factual, conceptual, procedural, and metacognitive). The aim of this research is to develop test instrument of multiple choice for measuring how the ability to HOTS and cognitive knowledge of biology of senior high school students on the subject of human digestive system. The type of this research is Research and Development (R&D) that based on the development model of Oriondo & Dallo-Antonio and Wilson. The field testing was be done in March-April 2020 involving 280 around the five state senior high school in Yogyakarta. The data based on analysis measurement Rasch Model and use Quest program to find out goodness of fit, difficulty index, and reliability. Result of analysis shows that test instrument of HOTS and Cognitive Knowledge were valid and reliable. The goodness of fit test for the overall test and each item shows fit with the Rasch model. Difficulty indexes for the item ranged -3,44 to +1,36. Reliabilities of item estimate were 0,99.
Design of e-modules to stimulate HOTS on static fluid materials with the STEM approach
Authors: Afriyanti M , Suyatna A , Viyanti
Published: February 2021

This study aims to develop an e-module to stimulate HOTS on static fluid material with the STEM approach. The research method uses the design of research and development (R&D) using the ADDIE model which consists of five stages, namely: analysis, design, development, implementation, and evaluation. This article reported two stages namely analysis and design. The instrument used in the form of a questionnaire of product needs analysis and practitioners’ validation sheets using a Likert scale. Source of data for needs analysis are senior high 40 school students and 18 physics educators in Lampung. Product design validation is carried out by qualified and professional physics educators in their fields with the Masters in Physics Education category. Data were collected using Google Form and analyzed using descriptive quantitative. The results showed that an e-module to stimulate HOTS on static fluid material was very needed in the field. In conclusion, the e-module design is very suitable for stimulating HOTS and can be done at the stage of developing an interactive e-module based on STEM to stimulate HOTS of students on static fluid material.
Validity testing of a contextual approached with REACT components-based module on topic of salt hydrolysis for class XI senior high school students
Authors: Gazali Fauzana , Yusmaita Eka , Feronika Nur Intan
Published: February 2021

A contextual approach-based module that consists of five components namely Relating, Experiencing, Applying, Cooperating, and Transferring (REACT) can help students find concepts. This research aims to develop a contextual approach-based module that contains critical thinking skills indicators on salt hydrolysis topics which have content validity and construct validity. Research instruments were construct validity questionnaires analyzed with Aiken V formula and a content validity questionnaire analyzed with CVR approach. The questionnaires were filled by 3 chemistry lecturers and 2 chemistry teachers at SMA 9 Padang. It was found that the average of V score for construct validity was 0.81 showing valid categories, while the CVR and CVI values of content validity were 0.98 and 1 respectively also showing valid categories. Therefore, it can be concluded that the salt hydrolysis module which is based on a contextual approach with REACT components for class XI learning is valid.
The development of guided inquiry based student worksheet of chemical equilibrium towards student activities
Authors: Kardena Hidayati , Mawardi Mawardi
Published: February 2021

This study aims to produce a worksheet of chemical equilibrium which based on guided inquiry to determine the validity, practicality and effectiveness the student worksheet on student learning activities. Learning activities are assessed in the form of listening activities, visual activities, mental activities, oral activities, writing activities and motor activities. This research method was a research development using the Plomp model. The research subjects were students majoring in chemistry in 2019. The research instruments used were validation sheets, practicality sheets and observation sheets of learning activities. This research found that the students’ worksheets have a very high level of validity (k=0,91) and very high level of practicality by students (k=0,87) and high by the lecturer (k=0,79). The results showed that in general, the average student learning activity was 81,18% which was included in the very high category. It shows that the students’ worksheets which have been produced can be used as one of the teaching materials in the learning process on chemical equilibrium material.
Validity and practicality of electrolyte and non-electrolyte solution modules posit on guided inquiry with probing prompting technique for grade X in senior high school
Authors: Kamilah Suha , Hardeli  , Azra Fajriah
Published: February 2021

The 2013 curriculum development requires students to be active during the learning process and critical thinking. The using of electrolyte and non electrolyte modules is a way to improve students’ critical thinking skills. This study aims to produce an electrolyte and non-electrolyte solution module posit guided inquiry with probing prompting technique and reveals validity and practicality of the using of the module. In this research, the model is the Plomp model expanded by Tjeerd Plomp. The instruments were validation sheet questionnaire and practicality sheet. The validation has been validated by three chemistry lecturers at UNP, two Payakumbuh SMAN 3 chemistry teachers, and a chemistry teacher of Payakumbuh SMA N 5 schools. Validation of the module using Cohen’s Kappa formula. The yield with a kappa moment value of 0.90. Practicality sheets were given to 58 students. The result of the practicality has a very high validity level of 0.90.
Instructional designs to promote scientific literacy on students and teachers: a review study
Authors: Nugraeni M H , Paidi
Published: February 2021

Scientific literacy is one of the essentials literacies in twenty-first century world and 4.0 industrial revolutions. Indonesian students’ scientific literacy based on the result of PISA 2015 and PISA 2018 was not in the satisfying level yet. This study provides several instructional designs that proved could promote students’ and teachers’ scientific literacy. This review study was carried out by reviewing 15 international articles. Instructional designs that could improve student’s scientific literacy based on the studies were discussion method on scientific topic, connecting science learning with culture through personal science writing, effective argumentation on an energy-related environmental issue, literacy-infused and inquiry-based science learning, student worksheet based on education for environmental sustainable development, modified problem-based learning, project-problem based learning, pop-culture hook and authentic challenge-based learning, the differentiated instruction, structured primary literature project, teaching material based on science literacy, and STSE learning approach. Instructional designs and program to improve teacher or teacher candidate’s scientific literacy were well-constructed teacher training programs, intensive and multiple approaches teaching, instruction with Toulminian model of argumentation on the application of STEM discoveries.
The Distinction of Students’ Science Process Skill and Learning Activities between Guided Inquiry and Conventional Learning with Experiment
Authors: Juniar A , Fardilah R D , Tambunan P M
Published: February 2021

The chemical knowledge of students was low because learning activities tend to be teacher oriented. For this reason, we need to develop knowledge acquisition process skill. Therefore we suggest scientific attitude which included in the “Science Process Skill”. The purpose of this research was to determine the type of learning model which was able maximize the students’ scientific processes skills. The results of the application can be observed in student learning activities during observation. A quasi-experimental control group with pre and post-test design was performed in this study. The sample were students in XII MIA-1 in SMAN 5 Binjai which applied Guided Inquiry learning model meanwhile XII MIA-2 applied conventional learning. The results showed that the Science Process Skills in both experiment classes obtained an average score of 93.78 and 75.32 respectively so that they were categorized as “Very Good” and “Good” on 6 (six) aspects: observing, grouping, applying concepts, interpreting, conducting experiments, formulating hypotheses. While learning activities obtained an average score of 90.27 and 79.29 respectively, so that they were categorized as “Very Good” and “Good” on the five indicators: Readiness to learn, skills for using tools, actively providing opinion, working in group and making conclusion.
Study on Dyeing Process of Bamboo Pulp Fiber Fabric with Pomegranate-peel Dye
Authors: Liang Suzhen
Published: February 2021

The pomegranate-peel dye was extracted by boiling in this paper. Through orthogonal experiments, using dye fixation rate as an indicator, it has studied the best dyeing process of pomegranate-peel dye for dyeing bamboo pulp fibers with direct dyeing and same-bath mordant dyeing methods. The dyeing process parameter are optimized through orthogonal experiments as follows: (1)with direct dyeing method, when dyeing 30minutes or 50minutes, the optimal process parameters are dyeing concentration X, dyeing temperature 80°C, and dyeing PH value 8; when dyeing 70minutes, the optimal process parameters are dyeing concentration 2/3X, dyeing temperature 80°C, and dyeing PH value 9.(2) with same-bath mordant dyeing method, when dyeing 30minutes, the optimal process parameters are dyeing concentration X, dyeing temperature 80°C, and dyeing PH value8; when dyeing 50minutes, the optimal process parameters are dyeing concentration 2/3X, dyeing temperature 60°C, and dyeing PH value7; when dyeing 70minutes, the optimal process parameters are dyeing concentration X, dyeing temperature 60°C, and dyeing PH value9. It is concluded that the bamboo pulp fiber dyed with pomegranate-peel dye has good dyeing performance, which meets the color fastness requirements of fabrics.
Study on dyeing of vegetable tanned leather with indigo
Authors: Jing Li , Taisheng Gong , Haiyan Xu , Yangyi Chen , Shaoqing Huang , Huafeng Zhong
Published: February 2021

In order to improve the dyeing fastness of indigo plant dyes for leather, save the cost of dyeing and reduce the environmental pollution in the dyeing process, the appearance quality is improved by improving the traditional indigo dyeing method. In this study, we try to use indigo acid environment to dye vegetable tanned leather to avoid the damage of basic environment to leather in the process of indigo vat dyeing. The single factor and orthogonal experiments of indigo natural dye dyeing vegetable tanned leather were carried out with the amount of iron medium, indigo dye, dyeing temperature and pre mordant dyeing time as experimental parameters, and the dyeing effect was evaluated with the K/S levels and color fastness as measurement indexes. The results showed that the concentration of iron powder was 10g / L, the pre mordant dyeing time was 25 minutes, the concentration of indigo was 16 g / L, and the dyeing temperature was 35 °C; the vegetable tanned leather after dyeing had better K/S levels, dry wet friction and tensile strength, but the light fastness needs to be further improved.
Structural colours controlled by mixing two sized silica nanoparticles
Authors: Lin Tiantian , Chen Jiaying , Ge Ruoqing , Gao Weihong
Published: February 2021

Structural colour has attracted much attention because of its features of never fading, high saturation, high brightness, green environmental protection, the application of structurally coloured photonic crystal (PC) materials as pigments and coatings is becoming more and more mature. In this work, silica nanoparticles (SNPs) with two particle diameters were prepared by using Stöber method, PC films were fabricated by mixing two sized SNPs with different mixing ratios, the result showed that the structural colours of the photonic films had a blueshift when the ratio of the smaller sized SNPs increased, i.e. the structural colours changed from red to orange, yellow, yellow-green and green for the five selected increased ratios. In addition, PC films with uniform SNPs give iridescent structural colours, while those with mixed SNPs give non-iridescent structural colours. The method of producing different structural colours from two sized SNPs is simple and fast, and it can be applied to the development of a wide range of colourful photonic pigments.
Dyeing properties of cashmere fiber dyed with gardenia blue pigment
Authors: Fangbin Shen , Yi Ding , Ruobai Xiao
Published: February 2021

In the historical road of human mining natural dyes, “plant dyeing” occupies a considerable part. Plant dyes are from nature and used for environmental protection, so they have high development value. In this paper, the dyeing properties of cashmere dyed with gardenia blue pigment were studied. Through orthogonal test and single factor analysis, the effects of pH value, reaction temperature, dye mass fraction and reaction time on color characteristic value and color fastness were investigated. The optimum direct dyeing process of gardenia blue on cashmere fiber was determined as follows: pH value of dye solution is 4.0 – 4.5, dye mass fraction is 7.5% o.w.f, temperature is 75 °C, time is 50mins, bath ratio is 1:30. Direct dyeing and mordant dyeing were used to dye gardenia blue on cashmere fiber. The results show that different blue effects can be dyed by different mordants. When ferrous sulfate was used as mordant, the dyeing depth increased, but the color became gray. When copper sulfate is used as mordant, the dyeing depth increases and the color light changes most obviously due to the influence of copper ions.

CLC No: TS 194.1 Document identification code: A
Innovative design of caisson lotus pattern in Mogao grottoes based on shape grammar
Authors: Chen Daoling , Cheng Pengpeng , Simatrang Sone , Joneurairatana Eakachat
Published: February 2021

The caisson lotus pattern in the Mogao Grottoes is an important symbol of Dunhuang culture, but its innovative design is very scarce. Simple mechanical reproduction cannot satisfy its spread and development in modern aesthetics. In this study, by analyzing the caisson lotus patterns in the Tang dynasty, clarifies its types and characteristics, extracts the lotus pattern structure as the initial model, and uses shape grammar to evolve into new patterns that have both the original lotus pattern structure characteristics and modern aesthetics. Finally, the fuzzy comprehensive evaluation method is used to evaluate the new lotus pattern, which proves the feasibility and effectiveness of the method in this paper, and provides new design ideas for the inheritance and innovative design of traditional lotus pattern.
Research on Pressure Comfort of Yoga Suit and Optimization Scheme of Pattern Based on CLO 3D Software
Authors: Liu Weiyi , Yao Tong , Yao Chong , Liu Pei
Published: February 2021

Based on the improvement of yoga clothing pressure comfort, this paper used Fuyi CAD garment system to make 2d clothing pattern, then, the 3D virtual fitting experiment of the main part of this paper was carried out. In the experiment, the static and dynamic pressure data of the virtual model were collected by using ClO 3D software, and the experimental data were analyzed by using the comparative experimental method. After analysis, the optimization was carried out in the garment piece, and then the same method was adopted to conduct data acquisition again, and it turned out to be that the overall virtual pressure reduces 247.93Kpa. Finally, the optimization effect of each garment piece was evaluated. The results showed that the sample can be optimized and the pressure comfort can be improved through the virtual pressure test method of CLO 3D platform.
Advances in Textile-Based Flexible Temperature Sensors
Authors: Gu Y M
Published: February 2021

In recent years, smart clothing, as a hot spot in the current research field, is booming, but mainly because it requires a strong interdisciplinarity, most still adopt the method of attaching sensitive components, and it cannot be called smart clothing in the true sense. This paper introduces the application and development of flexible materials in the development of smart temperature-sensitive clothing from two perspectives: fiber and non-fiber materials, and pointed out the use of fiber characteristics instead of sensitive components as a future research direction to achieve smart clothing monitoring.
The Mechanism and Research Application of Far-infrared Textiles Relieving Sports Fatigue
Authors: Didi Lv , Yanmei Li
Published: February 2021

Aiming at the causes of sports fatigue, one of the main means to alleviate sports fatigue is to reduce lactic acid in the body. Combined with the development and application of far-infrared fibers this year, using its physical properties and biological effects on the human body, the far-infrared energy reaches deep tissues and organs, causing the body to produce a warming effect, dilating blood vessels, accelerating blood flow, and blood Stagnation is reduced, which can reduce lactic acid in the body during exercise and achieve the purpose of alleviating fatigue. At present, far-infrared has been developed and applied in some fields. The research and deeper application of far-infrared in the fields of medicine and kinematics are the focus of future development.
Intelligent Clothing Interaction Design and Evaluation System Based on DCGAN Image Generation Module and Kansei Engineering
Authors: Chen Lu , Fang Qi , Chen Yu
Published: February 2021

The deep convolutional generative adversarial network (DCGAN) model can be applied to personalized fashion design. Determining the best design from fashion sketches that is of interest to customers is an important research field. In this study, we propose a rapid evaluation method based on Kansei engineering to evaluate personalized fashion images generated by DCGAN. The degree of customer interest in the generated fashion images is determined by tracking the eye movements and facial expressions of customers. Images with high number of fixations are added to the training data for iterative training; this aims to improving customer satisfaction. The method was verified in an interaction design of personalized black dresses. After several iterations, the customers’ satisfaction rating of the generated images by DCGAN improved. This method can be applied to other styles of fashion design.
Research on Innovative Design of Patchwork Art Based on the Concept of Sustainable Development——Take the Creation of “HUI Yu Men Ting” as an Example
Authors: Jinlong Yuan , Yue Wang , Yanxiang Cheng , Yuanyuan Zhang , Huiyi Wu , Yan Wu
Published: February 2021

While scientific and technological progress and economic development have improved the state of human life, they have also brought a series of hazards to human survival. Therefore, sustainable development has become an inevitable trend for development in various fields. Patchwork art is a typical traditional art form. No matter now or in the future, only by absorbing the essence of culture, deeply exploring the harmonious relationship between man and nature, and adhering to the road of sustainable development can we realize the vitality of modernization. This article focuses on the concept of sustainable development and provides theoretical knowledge and methodological guidance for modern patchwork art design. Taking the work “Hui Yu Men Ting” as an example, it discusses the sustainable design research of the use of waste denim clothing for the creation of patchwork art from the aspects of material selection, creative concept, and expression techniques.
Innovative design of traditional calligraphy costume patterns based on deep learning
Authors: Han Chen , Lei Shen , Mingming Wang , Xiangfang Ren , Xiying Zhang
Published: February 2021

With the global homogenization of today’s costume design, a new design phenomenon is derived, that is, the globalization of regional ethnic traditional costume. Chinese traditional style has become one of the global fashion trends. In order to digitally inherit the traditional costume culture and innovate and upgrade the design process in the costume industry, this paper takes the traditional calligraphy costume patterns as the research object and proposes an innovative design method based on deep learning Generative Adversarial Network. This study analyzes the artistic characteristics and cultural genes of traditional calligraphic costume patterns, establishes a Generative Adversarial Network model containing discrimination and generation modules, and optimizes the design of the model for the characteristics of traditional costume patterns, such as small samples, multiple specifications, and emphasis on meaning rather than form. Through comparative experiment, subjective evaluation and design application, the advanced and practical value of the model are verified. This research aims to provide new ideas and methods for the inheritance and innovation of traditional culture in costume arts.
Innovative application of 3D printing technology in Fashion design
Authors: Fanglan Zhang , Kaifa Deng
Published: February 2021

The vigorous development of 3D printing technology has brought more innovative design inspiration to Fashion design. Designers have launched 3D printed clothing that subverts the traditional aesthetic. Taking the 3D printing parametric Fashion design method, process technology and material analysis as the premise of the study, the article discusses the innovative application of 3D printing technology in Fashion design from three aspects, including 3D printed clothing natural aesthetic design, bionic design and fusion with big data. In the innovative research of 3D printed clothing, the design aesthetics of Iris van Hrpen is viewed as an example to analyse the aesthetic form of clothing. Furthermore, the article explores the aesthetic meaning and styling characteristics of 3D printed clothing and explains aesthetic characteristics from the perspective of design science. The feasibility of 3D printed Fashion design was discussed from the perspective of shape, color and texture bionics. The fusion of 3D printing technology and big data has gradually become an inevitable trend, and fresh forms of Fashion are booming.
Design and Development of Urban Cultural and Creative Products with Segment Filling Insertion
Authors: Fang Jiahui , Ma Yanxue , Li Yuling , Wei Yi , Zhang Ruiyun , Wen Run , Xue Wenliang , Wu Jianhua
Published: February 2021

Known as the essential filling insertion technology of Kesi and Yunjin, the segment filling insertion can only be inherited by handicraftsman currently, which is threatened with extinction. In the study, automatic segment filling insertion technology was introduced, and applied to produce cultural and creative woven products with urban themes. What proposed in this paper can not only promote the digital innovation of the traditional weaving process, but also incorporate into the contemporary cultural creative products.
Design and research of wearable air conditioner based on two-node model
Authors: Yang Hong , JiaYin Liu
Published: February 2021

As a special air conditioner system, wearable air conditioner has a wide range of demands in aerospace, engineering, medical research, experimental equipment, sports competition, home life and many other fields. Due to the principle of using compressors, there are large volume, large weight, not portable practical shortcomings. Solving the practical problem of micro air conditioner is helpful to promote the development of science and technology. Based on the study of two-node model and the Partie effect, this paper proposes a portable wearable air conditioner with cooling and cooling system and a total mass of less than 2kg.
Effects of body posture on air gap and heat transfer of clothed infant using a baby manikin
Authors: Jiang Shu , Li Jun
Published: February 2021

Body posture affects the heat transfer between infants and surroundings. The purpose of this study was to investigate the air gap thickness as well as the heat transfer at the infant’s body surface when the infant posture changed from standing to lying down (supine). Visual and quantitative air gap distributions were achieved using 3D body scanning technology and reverse engineering software. Global and local heat transfer coefficients were also obtained by baby manikin test. The results showed that the local air gap thickness significantly decreased in supine posture compared to standing, especially at the diaper zone. Moreover, the supine posture reduced the local heat exchange although the corresponding air gap thickness decreased. The different linear regression models between air gap thickness and heat transfer coefficient were therefore built in both standing and supine postures. For the air gap thickness with the range of 4.00-9.05 mm, the coefficient was always lower when lying down than standing. The findings provided useful information for the improvement of infant clothing design and the modelling of heat and mass transfer in infant clothing for different body postures.
The establishment of the digital model of Mongolian robe and virtual display
Authors: Shi Hui , Yu Xiao , Liu Yunjuan , Yu Shuai , Tian Suqi , Yang Wu
Published: February 2021

The aim of this study was to establish the 3D virtual model of the Mongolian Zarut tribe male Mongolian robe (MZTMMR). This study designed 2D planar patterns of MZTMMR in Gerber CAD software. A 3D fabric texture of MZTMMR was established using planar image processing technology. A virtual male model of 175/88A After imported into CLO 3D, the 2D planar patterns was arranged around the male model and then sewn into virtual MZTMMR as created in CLO 3D software. The 3D fabric texture was pasted on the virtual MZTMMR. A virtual 3D model of MZTMMR was established in this study. Meanwhile, the method of building a virtual 3D model of MZTMMR included 2D patternmaking, 3D fabric texture creation, human model creation and virtual fitting (2D pattern arrangement and virtual sewing). The findings of this study are useful for providing technical support for cultural research, protection, display and inheritance of traditional Mongolian clothing culture.
Research and evaluation of functional clothing for patients with paraplegia of both lower limbs
Authors: Jiayin Liu , Zhaohua Zhang
Published: February 2021

Because of the particularity of the body, the clothes of ordinary people are not suitable for paraplegia patients. In this paper, by means of questionnaire survey and incision experiment, a functional garment is developed for patients with paraplegia of both lower extremities, which integrates the structural fitness and convenience of wearing and taking off. Moreover, the functional clothing was evaluated by referring to the convenience evaluation system and combining with the subjective evaluation method. The results showed that the structural fitness of the functional garments was improved, especially the tension of the elbows and knees was significantly reduced. In addition, the convenience of wearing functional pants was also significantly improved: participants’ participation in the three ADLs was significantly increased when wearing functional pants, all of which were 100%. The time taken to complete three ADLs in functional pants was also reduced, among which the replacement of diapers was the most efficient, reducing the time by 70.39%.
An Overview Of The Research Status And Development Trend Of Dynamic Pressure Distribution Testing For Clothing
Authors: Zhang Linwei
Published: February 2021

Clothing pressure can be divided into dynamic pressure and static pressure. When measuring dynamic garment pressure, it is difficult to accurately measure dynamic garment pressure due to the complexity of measuring device and the influence factors such as sliding between skin and fabric during movement. To understand the influencing factors of clothing pressure, clothing pressure measurement technology and the existing dynamic pressure distribution prediction model, so as to achieve accurate prediction of dynamic pressure distribution of clothing, can provide ideas for future research on dynamic pressure comfort of clothing and provide scientific basis for clothing design.
Design and Research of Electromagnetic Monitoring and Visualization Intelligent Flexible Devices
Authors: Song Nan-kai , Xu Ying-qi
Published: February 2021

Based on the principle of electrochromism, this paper studies its application in the monitoring of electromagnetic field strength changes in the environment, aiming to provide a theoretical basis for smart wearable textiles. In this paper, the conductive path between the electromagnetic wave detector and the electrochromic device is built to provide the required color-changing voltage conditions for the polyaniline electrochromic device. The polyaniline is synthesized by microemulsion polymerization using a scanning electron microscope and an X-ray diffractometer. Electrochemical workstation and infrared spectrometer systematically analyze the morphology, crystallization, chemical structure and electrochemical properties of polyaniline film; fabricate polyaniline electrochromic device with “sandwich” structure, and test its optical with visible light photometer The performance, combined with the electromagnetic wave detection device, has developed an electromagnetic monitoring visual intelligent flexible device that can be packaged on the fabric. The results show that the prepared polyaniline electrochromic material has good discoloration performance, and the electromagnetic monitoring and visualization intelligent flexible device encapsulated in the fabric can respond to the color change according to different electromagnetic fields in the environment.