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An Optimized SWCSP Technique for Feature Extraction in EEG-based BCI System 基于脑电图的脑机接口系统特征提取的优化SWCSP技术
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-05-30 DOI: 10.14500/aro.10926
Navtej S. Ghumman, B. Jindal
Brain-computer interface (BCI) is an evolving technology having huge potential for rehabilitation of patients suffering from disorders of the nervous system, besides  many other nonmedical applications. Multichannel electroencephalography (EEG) is widely used to provide input signals to a BCI system. Significant research in methodology employed to implement different stages of BCI system, has led to discovery of new issues and challenges. The raw EEG data includes artifacts from environmental and physiological sources, which is eliminated in preprocessing phase of BCI system. It is then followed by a feature extraction stage to isolate a few relevant features for further classification to a particular motor imagery (MI) activity. A feature extraction approach based on spectrally weighted common spatial pattern (SWCSP) is proposed in this paper to improve overall accuracy of a BCI system. The reported literature uses SWCSP for feature extraction, as it has outperformed other techniques. The proposed approach enhances its performance by optimizing its parameters. The independent component analysis (ICA) method is used for detection and removal of irrelevant data, while linear discriminant analysis (LDA) is used as a classifier. The proposed approach is executed on benchmark data-set 2a of BCI competition IV. It yielded classification accuracy of 70.6% across nine subjects, which is higher than all the reported approaches. 
脑机接口(BCI)是一项不断发展的技术,除了许多其他非医学应用外,在神经系统疾病患者的康复方面具有巨大的潜力。多通道脑电图(EEG)被广泛用于为脑机接口系统提供输入信号。在实施脑机接口系统不同阶段所采用的方法上的重要研究,导致了新的问题和挑战的发现。原始脑电数据包含环境和生理因素的伪影,这些伪影在脑机接口系统的预处理阶段被消除。接下来是特征提取阶段,以分离出一些相关特征,以便进一步分类到特定的运动图像(MI)活动。为了提高脑机接口系统的整体精度,提出了一种基于谱加权公共空间模式(SWCSP)的特征提取方法。报道的文献使用SWCSP进行特征提取,因为它优于其他技术。该方法通过优化其参数来提高其性能。使用独立成分分析(ICA)方法检测和去除不相关数据,使用线性判别分析(LDA)作为分类器。本文提出的方法在BCI竞赛IV的基准数据集2a上执行,9个科目的分类准确率为70.6%,高于所有已报道的方法。
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引用次数: 3
Identification DNA Methylation Change of ABCC8 Gene in Type 2 Diabetes Mellitus as Predictive Biomarkers ABCC8基因甲基化变化在2型糖尿病中作为预测性生物标志物的鉴定
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-05-30 DOI: 10.14500/aro.10947
Harem O. Smail, Dlnya A. Mohamad
Type 2 diabetes mellitus is the most common chronic endocrine disorder that affecting 5%–10% of adults globally. Recently, the disease has rapidly spread throughout the Kurdistan Region. This study investigates DNA methylation status in the ABCC8 gene among the study population, and it possibly used as a biomarker. One hundred and thirteen individuals were included in this study, and they were divided into three categories (47 diabetes, 36 prediabetic, and 30 controls). Blood samples were collected to investigate DNA methylation status in patients who attended private clinical sectors in Koya city, Kurdistan Region of Iraq, between August and December 2021. Methylation-specific PCR (MSP) uses paired primers for each methylated and unmethylated region. In addition, the X2 Kruskal–Wallis statistical and Wilcoxon signed-rank tests were run with a significance level of p 0.05. In comparison to the healthy group, hypermethylation of DNA is detected in the promoter region of diabetes and prediabetes. In addition, age, gender, BMI, alcohol use, family history, and physical activity all influence the degree of DNA methylation in people who have had coronavirus illness. The abovementioned findings suggest that DNA methylation alterations in the ABCC8 promoter region might be exploited as a possible predictive biomarker for type 2 diabetes mellitus diagnosis.
2型糖尿病是最常见的慢性内分泌紊乱,影响全球5%-10%的成年人。最近,该疾病在整个库尔德斯坦地区迅速蔓延。本研究调查了ABCC8基因在研究人群中的DNA甲基化状态,并可能将其作为一种生物标志物。这项研究纳入了113人,他们被分为三类(47名糖尿病患者,36名糖尿病前期患者和30名对照组)。收集了血液样本,以调查2021年8月至12月期间在伊拉克库尔德斯坦地区科亚市私营诊所就诊的患者的DNA甲基化状况。甲基化特异性PCR (MSP)对每个甲基化和非甲基化区域使用配对引物。并进行X2 Kruskal-Wallis统计检验和Wilcoxon符号秩检验,显著性水平为p 0.05。与健康组相比,在糖尿病和前驱糖尿病的启动子区域检测到DNA的高甲基化。此外,年龄、性别、体重指数、饮酒、家族史和身体活动都会影响冠状病毒患者的DNA甲基化程度。上述发现表明,ABCC8启动子区域的DNA甲基化改变可能被用作2型糖尿病诊断的可能的预测性生物标志物。
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引用次数: 2
Measuring the Voice Resemblance Extent of Identical (Monozygotic) Twins Using Voiceprints Neutrosophic Domain 用声纹中性区测量同卵(同卵)双胞胎的声音相似程度
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-05-27 DOI: 10.14500/aro.10925
Yazen A. Khaleel, Caroline Y. Daniel, S. Yahya
The identical twins (Monozygotic) are siblings created from the division of one fertilized egg (zygote), so they will be identical in their genetic characteristics and therefore in their phenotypic traits to a very large extent. Among these traits is the voice or the voiceprint of these twins. This research aims to suggest a method to determine the extent of the similarity and the difference between the voiceprints between the brothers of the identical twins and thus, it is possible to distinguish between their voices. This study relied on using a number of audio clips collected from 35 identical twins. The proposed method is based on the use of the spectrogram that represents the voiceprint of the twins. The spectrogram is a two-dimensional function that can be used in the Neutrosophic Transformation to convert the voiceprints to the Neutrosophic domain represented by three membership functions (True, False, and Indeterminate). The results showed that the average extent of the similarity ratio between twins’ voices (True membership) is 67.6%, the difference ratio (False membership) is 32.3%, and the indeterminacy membership function ratio is 18.2%.
同卵双胞胎(Monozygotic)是由一个受精卵(受精卵)分裂产生的兄弟姐妹,所以他们在遗传特征上是相同的,因此在很大程度上他们的表型特征是相同的。这些特征之一是这些双胞胎的声音或声纹。这项研究的目的是提出一种方法来确定同卵双胞胎兄弟之间声纹的相似程度和差异程度,从而有可能区分他们的声音。这项研究依赖于从35对同卵双胞胎中收集的大量音频片段。提出的方法是基于使用代表双胞胎声纹的频谱图。声谱图是一个二维函数,可用于中性转换,将声纹转换为由三个隶属函数(True, False和Indeterminate)表示的中性域。结果表明,双胞胎声音的平均相似度(真隶属度)为67.6%,差异度(假隶属度)为32.3%,不确定隶属度函数比为18.2%。
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引用次数: 0
Driver Drowsiness Detection Using Gray Wolf Optimizer Based on Face and Eye Tracking 基于人脸和眼动追踪的灰狼优化检测驾驶员睡意
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-05-05 DOI: 10.14500/aro.10928
S. Jasim, A. A. Abdul Hassan, Scott Turner
It is critical today to provide safe and collision-free transport. As a result, identifying the driver’s drowsiness before their capacity to drive is jeopardized. An automated hybrid drowsiness classification method that incorporates the artificial neural network (ANN) and the gray wolf optimizer (GWO) is presented to discriminate human drowsiness and fatigue for this aim. The proposed method is evaluated in alert and sleep-deprived settings on the driver drowsiness detection of video dataset from the National Tsing Hua University Computer Vision Lab. The video was subjected to various video and image processing techniques to detect the drivers’ eye condition. Four features of the eye were extracted to determine the condition of drowsiness, the percentage of eyelid closure (PERCLOS), blink frequency, maximum closure duration of the eyes, and eye aspect ratio (ARE). These parameters were then integrated into an ANN and combined with the proposed method (gray wolf optimizer with ANN [GWOANN]) for drowsiness classification. The accuracy of these models was calculated, and the results demonstrate that the proposed method is the best. An Adadelta optimizer with 3 and 4 hidden layer networks of (13, 9, 7, and 5) and (200, 150, 100, 50, and 25) neurons was utilized. The GWOANN technique had 91.18% and 97.06% accuracy, whereas the ANN model had 82.35% and 86.76%.
如今,提供安全和无碰撞的运输至关重要。因此,在驾驶员的驾驶能力受到威胁之前识别驾驶员的困倦状态。为此,提出了一种结合人工神经网络(ANN)和灰狼优化器(GWO)的混合睡意自动分类方法。在清华大学计算机视觉实验室的视频数据集上,对该方法进行了清醒和睡眠剥夺设置下的驾驶员困倦检测。该视频经过各种视频和图像处理技术来检测驾驶员的眼睛状况。提取眼睛的四个特征来确定困倦状态、眼睑闭合百分比(PERCLOS)、眨眼频率、眼睛最大闭合持续时间和眼睛宽高比(ARE)。然后将这些参数整合到一个人工神经网络中,并与所提出的方法(灰狼优化器与人工神经网络[gwann])相结合进行嗜睡分类。对模型的精度进行了计算,结果表明所提出的方法是最好的。使用Adadelta优化器,包含3和4个隐藏层网络(13、9、7和5)和(200、150、100、50和25)神经元。GWOANN技术的准确率分别为91.18%和97.06%,而ANN模型的准确率分别为82.35%和86.76%。
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引用次数: 4
Detection of SARS-CoV-2 Reinfections by Rapid Inexpensive Methods 快速廉价方法检测SARS-CoV-2再感染
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-05-03 DOI: 10.14500/aro.10916
S. Al-jaf, S. Niranji
New SARS-CoV-2 infections are difficult to beverified, whether they are reinfections or persistent infections. The most prominent factors used for differentiating reinfections from persistent infections are whole-genome sequencing and phylogenetic analyses that require time and funds, which may not be feasible in most developing countries. This study explores reinfections with COVID-19 that harbors D614G and N501Y mutations by rapid inexpensive methods. It exploits the previously developed rapid economic methods that identified both D614G and N501Y mutations in clinical samples using real-time reverse transcriptase polymerase chain reaction (rRT-PCR) probes and conventional PCR specific primers. In the present study, an immunocompetent patient has been found with a SARS-CoV-2 N501Y reinfection without comorbidities. According to the obtained results, this study suggests that the initial infection was due to a variant that contained only D614G mutation whereas the reinfection was potentially a result of alpha variant contained three mutations confirmed by DNA sequencing, including D614G, N501Y, and A570D mutations. These techniques will support rapid detection of SARS-CoV-2 reinfections through the identification of common spike mutations in the developing countries where sequencing tools are unavailable. Furthermore, seven cases of reinfections were also confirmed by these methods. These rapid methods can also be applied to large samples of reinfections that may increase our understanding epidemiology of the pandemic.
新的SARS-CoV-2感染很难得到证实,无论是再感染还是持续感染。用于区分再感染和持续感染的最重要因素是全基因组测序和系统发育分析,这需要时间和资金,这在大多数发展中国家可能不可行。本研究通过快速廉价的方法探索了携带D614G和N501Y突变的COVID-19的再感染。它利用先前开发的快速经济方法,使用实时逆转录酶聚合酶链反应(rRT-PCR)探针和传统PCR特异性引物在临床样品中鉴定D614G和N501Y突变。在本研究中,发现一名免疫功能正常的患者再次感染SARS-CoV-2 N501Y,无合并症。根据获得的结果,本研究表明,最初的感染是由于仅含有D614G突变的变异,而再次感染可能是由于含有DNA测序证实的三个突变的α变异,包括D614G、N501Y和A570D突变。这些技术将通过识别无法获得测序工具的发展中国家常见的刺突突变,支持快速检测SARS-CoV-2再感染。此外,还发现了7例再感染病例。这些快速方法也可以应用于再感染的大样本,这可能会增加我们对大流行流行病学的理解。
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引用次数: 3
Network Transmission Flags Data Affinity-based Classification by K-Nearest Neighbor 网络传输标志基于k近邻的数据亲和力分类
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-04-25 DOI: 10.14500/aro.10880
N. Aljojo
Abstract—This research is concerned with the data generated during a network transmission session to understand how to extract value from the data generated and be able to conduct tasks. Instead of comparing all of the transmission flags for a transmission session at the same time to conduct any analysis, this paper conceptualized the influence of each transmission flag on network-aware applications by comparing the flags one by one on their impact to the application during the transmission session, rather than comparing all of the transmission flags at the same time. The K-nearest neighbor (KNN) type classification was used becauseit is a simple distance-based learning algorithm that remembers earlier training samples and is suitable for taking various flags withtheir effect on application protocols by comparing each new sample with the K-nearest points to make a decision. We used transmission session datasets received from Kaggle for IP flow with 87 features and 3.577.296 instances. We picked 13 features from the datasets and ran them through KNN. RapidMiner was used for the study, and the results of the experiments revealed that the KNN-based model was not only significantly more accurate in categorizing data, but it was also significantly more efficient due to the decreased processing costs.
摘要:本研究关注网络传输过程中产生的数据,了解如何从产生的数据中提取价值并能够执行任务。本文不是同时比较一个传输会话的所有传输标志来进行任何分析,而是通过逐个比较每个传输标志在传输会话期间对应用程序的影响来概念化每个传输标志对网络感知应用程序的影响,而不是同时比较所有传输标志。使用k -最近邻(KNN)类型分类是因为它是一种简单的基于距离的学习算法,可以记住早期的训练样本,并且适合通过比较每个新样本与k -最近点来确定各种标志对应用协议的影响。我们使用从Kaggle接收到的传输会话数据集来分析IP流,其中包含87个特征和3.577.296个实例。我们从数据集中挑选了13个特征,并通过KNN运行它们。使用RapidMiner进行研究,实验结果表明,基于knn的模型不仅在数据分类方面更加准确,而且由于处理成本的降低,效率也显著提高。
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引用次数: 1
Bioremediation Ability of the Local Isolate Enterobacter cloacae from Disposal Site 处理场局部分离阴沟肠杆菌的生物修复能力
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-04-10 DOI: 10.14500/aro.10948
H. A. Muhammad, H. Subhi, Khalid N. Sediq
Illegal dumping is a serious problem that needs to be addressed immediately to preserve human health and the environment as if the pollution that arises from it reaches the groundwater, complications of the remediation processes will increase. To decontaminate the organic and inorganic components, bioremediation seems to be the most environmentally friendly and economically viable technique without further treatment as reported by many studies. In this investigation, samples were taken from the soil of the main dumping area in Koysinjaq in Kurdistan Region of Iraq to determine the most potent bacteria to remediate the existed pollutants. The existence of non-essential minerals and organic compounds in the soil sample was detected using X-ray fluorescence device, and ethane and 1,2-dichloroethane solvents separating technique, respectively. Then, from the same samples, three different naturally occurring bacteria were isolated and cultured under optimized conditions then stimulated for a good result. Finally, spectrophotometer was set at wavelength of 600 nm and used to detect the heaviest growth of bacteria after incubating the cultured bacteria on a mineral salt broth medium with the extracted pollutants at pH 7.0 overnight at 32°C. Based on the highest absorbance, the most effective type of bacteria (Enterobacter cloacae) was chosen among others to remediate the organic components in which approximately 90% of them are plastics, medical waste, municipal waste, electrical items, and hydrocarbons, and some heavy metals, for instance aluminum and lead, which were found in the soil.
非法倾倒是一个需要立即处理的严重问题,以保护人类健康和环境。如果由此产生的污染达到地下水,补救过程的复杂性将增加。许多研究表明,生物修复技术是对有机和无机成分进行净化的最环保和经济可行的技术,无需进一步处理。在这项调查中,从伊拉克库尔德斯坦地区科伊辛克主要倾倒区的土壤中取样,以确定修复现有污染物的最有效细菌。采用x射线荧光仪和乙烷、1,2-二氯乙烷溶剂分离技术分别检测土壤样品中非必需矿物质和有机化合物的存在。然后,从相同的样品中分离出三种不同的天然细菌,并在优化的条件下进行培养,然后进行刺激以获得良好的结果。最后,分光光度计设置在600 nm波长,将培养的细菌与提取的污染物在pH 7.0的无机盐肉汁培养基中培养,在32℃下过夜,检测细菌生长最重。根据最高吸光度,在其他细菌中选择了最有效的细菌类型(阴沟肠杆菌)来修复有机成分,其中约90%是塑料、医疗废物、城市废物、电气产品和碳氢化合物,以及在土壤中发现的一些重金属,例如铝和铅。
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引用次数: 0
Suitability of the Carbonate Rocks of the Bekhme Formation Exposed in Shakrook Anticline, Iraqi Kurdistan region, for Cement Industry 伊拉克库尔德斯坦地区Shakrook背斜Bekhme组碳酸盐岩在水泥工业中的适用性
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-03-25 DOI: 10.14500/aro.10907
Mohammed J. Hamwandy, R. K. Ibrahim, V. Sissakian
The Bekhme Formation forms almost the bulk of the Shakrook anticline, especially the limbs. The current research deals with studying the exposed beds within the Bekhme Formation at the Shakrook anticline to check the suitability of the exposed rocks at the northeastern limb of the anticline for the cement industry. Twenty rock samples from a section which lies along a deeply cut valley that crosses the northeastern limb of the Shakrook anticline within the Bekhme Formation were collected. The channel sampling method was applied; therefore, each sample represents the concerned sampling interval and to be representative for the thickness of the sampled interval. The total thickness of the sampled section is 110 m with a covered interval of 15 m, totaling to 125 m. The collected 20 samples were prepared at the laboratory of the Koya University and were subjected to XRF test at the Tarbiat Modares University, Iran, to indicate the concentration of the main oxides (CaO, MgO, Al2O3, Fe2O3, Na2O, K2O, and SO3), and Cl and L.O.I. The indicated concentrations at each sample, from both universities, were compared and were found to be almost coinciding. The average concentrations at each sample were changed to weighted averages and the results were compared with the Iraqi standards for cement industry. The results revealed that the sampled rocks are excellent for cement production.
贝克梅组几乎构成了沙克鲁克背斜的大部分,尤其是其分支。目前的研究工作是研究Shakrook背斜Bekhme组的裸露层,以检查背斜东北缘裸露岩石是否适合水泥工业。从贝克梅组内横跨Shakrook背斜东北翼的一个深切山谷的剖面中收集了20个岩石样本。采用通道采样法;因此,每个样本代表相关的采样区间,并代表采样区间的厚度。采样剖面总厚度为110 m,覆盖间距为15 m,总厚度为125 m。收集的20个样品在Koya大学实验室制备,并在伊朗Tarbiat Modares大学进行XRF测试,以指示主要氧化物(CaO, MgO, Al2O3, Fe2O3, Na2O, K2O和SO3)以及Cl和L.O.I.的浓度。来自两所大学的每个样品的指示浓度进行了比较,发现几乎一致。将每个样品的平均浓度改为加权平均值,并将结果与伊拉克水泥工业标准进行比较。结果表明,该样品具有良好的水泥生产性能。
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引用次数: 0
Detecting Deepfakes with Deep Learning and Gabor Filters 用深度学习和Gabor过滤器检测深度伪造
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-03-18 DOI: 10.14500/aro.10917
Wildan J. Jameel, S. Kadhem, A. Abbas
The proliferation of many editing programs based on artificial intelligence techniques has contributed to the emergence of deepfake technology. Deepfakes are committed to fabricating and falsifying facts by making a person do actions or say words that he never did or said. So that developing an algorithm for deepfakes detection is very important to discriminate real from fake media. Convolutional neural networks (CNNs) are among the most complex classifiers, but choosing the nature of the data fed to these networks is extremely important. For this reason, we capture fine texture details of input data frames using 16 Gabor filters indifferent directions and then feed them to a binary CNN classifier instead of using the red-green-blue color information. The purpose of this paper is to give the reader a deeper view of (1) enhancing the efficiency of distinguishing fake facial images from real facial images by developing a novel model based on deep learning and Gabor filters and (2) how deep learning (CNN) if combined with forensic tools (Gabor filters) contributed to the detection of deepfakes. Our experiment shows that the training accuracy reaches about 98.06% and 97.50% validation. Likened to the state-of-the-art methods, the proposed model has higher efficiency.
许多基于人工智能技术的编辑程序的激增促成了深度造假技术的出现。Deepfakes致力于通过让一个人做他从未做过或说过的话来制造和伪造事实。因此,开发一种深度造假检测算法对于区分真假媒体是非常重要的。卷积神经网络(cnn)是最复杂的分类器之一,但选择提供给这些网络的数据的性质非常重要。出于这个原因,我们使用16个Gabor滤波器捕获输入数据帧的精细纹理细节,然后将它们提供给二进制CNN分类器,而不是使用红-绿-蓝颜色信息。本文的目的是让读者更深入地了解(1)通过开发基于深度学习和Gabor滤波器的新模型来提高区分假面部图像和真实面部图像的效率,以及(2)如果将深度学习(CNN)与取证工具(Gabor滤波器)相结合,如何有助于检测深度伪造。实验表明,训练准确率达到98.06%左右,验证率达到97.50%。与目前最先进的方法相比,该模型具有更高的效率。
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引用次数: 1
Application of Experimental Design Methodology for Adsorption of Brilliant Blue onto Amberlite XAD-4/Agaricus campestris as a New Biocomposite Adsorbent 新型生物复合吸附剂Amberlite XAD-4/Agaricus campestris吸附亮蓝的实验设计方法
IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-02-25 DOI: 10.14500/aro.10903
Ahmed A. Ahmed, V. Yönten
This research presents a new biocomposite adsorbents using response surface methodology (RSM) to find the best conditions for highest adsorption of Brilliant Blue G250 (BBG) from aqueous solution by Amberlite XAD-4/Agaricus campestris. The most effective parameters are determined by Plackett–Burman design (PBD) with specific ranges initial dye concentration (5–150 mg.L-1), temperature (20–50°C), contact time (5–100 min), pH (3–11), shaking speed (150–300 rpm), sample volume (5–75 mL), and adsorbent dosage (0.05–0.6 g). Then, in the second step, the optimum condition of effective factors is predicted using steepest ascent design. Finally, optimal medium conditions of effective parameters with central composite design are located. According to RSM, the best adsorbent amount, contact time, initial dye concentration, and sample volume for maximum removal% of BBG (96.72%) are 0.38 g, 60.78 min, 107.13 mg.L-1, and 28.6 mL, respectively. The adsorption of brilliant blue is approved by scanning electron microscopy. Under optimum conditions, it is concluded that XAD4/A. campestr is biocomposite is a suitable adsorbent for removing BBG from aqueous solution.
采用响应面法(RSM)研究了Amberlite XAD-4/Agaricus campestris在水溶液中吸附Brilliant Blue G250 (BBG)的最佳条件。通过Plackett-Burman设计(PBD)确定了最有效的参数范围,即初始染料浓度(5-150 mg.L-1)、温度(20-50°C)、接触时间(5-100 min)、pH(3-11)、震动速度(150-300 rpm)、进样量(5-75 mL)和吸附剂用量(0.05-0.6 g)。然后,在第二步中,采用最急剧上升设计预测了有效因素的最佳条件。最后,通过中心组合设计确定了有效参数的最佳介质条件。RSM实验结果表明,吸附量、接触时间、初始染料浓度和样品体积分别为0.38 g、60.78 min、107.13 mg,对BBG的去除率达到96.72%。L-1和28.6 mL。扫描电镜证实了其对亮蓝色的吸附作用。在最佳条件下,XAD4/A。生物复合材料是一种去除水溶液中BBG的合适吸附剂。
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引用次数: 0
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