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Rhodamine B Hazardous Dye Removal via Adsorption Using Hg(II) Coordination Polymer 利用配位聚合物吸附去除罗丹明 B 危险染料
Pub Date : 2024-03-26 DOI: 10.18466/cbayarfbe.1413938
Derya Davarcı, Afranur Pendar
Herein, we have reported the Hg(II) coordination polymer ,(Hg-CP), formulated {[Hg(L)](Cl2)](CH3CN)2}n, behaved as adsorbent against Rhodamine B dye stuff. Dye adsorption studies of coordination polymer were performed out using UV-Vis. absorption spectroscopy. Adsorption experiments were carried out acidic (pH=3) and neutral (pH=6) media and results showed that the compound removed the cationic Rhodamine B from water. In acidic media, adsorption capacity of the Hg-CP was more than neutral media. Also, Hg-CP could selectively adsorb Rhodamine B dye from the Rhodamine B/Methyl orange dye mixture. The colour of the Hg-CP was white before adsorption whereas it changed after adsorption as Rhodamine B adhered to the surface of Hg-CP.
在此,我们报告了配位聚合物{[Hg(L)](Cl2)](CH3CN)2}n对罗丹明 B 染料的吸附作用。使用紫外可见吸收光谱对配位聚合物进行了染料吸附研究。吸附实验分别在酸性(pH=3)和中性(pH=6)介质中进行,结果表明该化合物能去除水中的阳离子罗丹明 B。在酸性介质中,Hg-CP 的吸附能力高于中性介质。此外,Hg-CP 还能从罗丹明 B/甲基橙染料混合物中选择性地吸附罗丹明 B 染料。吸附前 Hg-CP 的颜色是白色的,而吸附后随着罗丹明 B 附着在 Hg-CP 表面,颜色发生了变化。
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引用次数: 0
Comparative Anatomy, Pollen and Seed Morphology of Two Verbascum Varieties (Scrophulariaceae) and Their Taxonomic Significance 两个马鞭草变种(景天科)的比较解剖学、花粉和种子形态学及其分类学意义
Pub Date : 2024-03-25 DOI: 10.18466/cbayarfbe.1433245
Murat Kılıç, Fatma MUNGAN KILIÇ
In this study, the anatomical, palynological, and seed micromorphological traits of two Verbascum types found in the Southeastern Anatolia Region were investigated. V. sinuatum subsp. sinuatum var. adenosepalum Murb. and V. sinuatum subsp. sinuatum var. sinuatum L. are these variation. Cross-sections from the taxa's roots, stems, and leaves were viewed under a light microscope for anatomical study. The xylem components play a significant role in the taxonomic root portions. The pith area is a broad region in stem sections, and the upper portion of the epidermis cells is encircled by a distinct indented cuticle layer. The leaves' primary vein is represented by open collateral bundles. Pollen grains in Verbascum sinuatum subsp. sinuatum var. adenosepalum are tricolporate-tricolpate, prolate-spheroidal, and have reticulate exine ornamentation. Similarly, pollen grains in V. sinuatum subsp. sinuatum var. sinuatum are tricolporate-tricolpate, prolate, and have reticulate exine ornamentation. The brown seeds of V. sinuatum subsp. sinuatum var. adenosepalum and V. sinuatum subsp. sinuatum var. sinuatum have an alveolate, deep and wide posterior region, a truncated beak, and a prismatic-oblong shape. The ornamentation of the seed coat is made up of irregular polygonal cells that have noticeable and dense vesicles. The importance of a few traits in the Verbascum variety delimitation has been investigated in this study. For the purpose of supporting ancestral traits in the infrageneric classification and helping with genus systematics, some pollen and seed characters which are typically connected to pollen and seed micromorphological and anatomical patterns can be applied.
本研究调查了安纳托利亚东南部地区发现的两种马鞭草的解剖学、古植物学和种子微形态特征。sinuatum subsp.在光学显微镜下观察分类群的根、茎和叶的横切面,进行解剖研究。木质部成分在根的分类中起着重要作用。在茎的切片中,髓区是一个宽阔的区域,表皮细胞的上部被一个明显凹陷的角质层包围。叶片的主脉以开放的侧脉束为代表。adenosepalum 的花粉粒呈三孢子三胞形、球状,并有网状外皮装饰。sinuatum var. sinuatum 的花粉粒也是三孢子三胞形、扁球形,并有网状外皮装饰。sinuatum subsp. sinuatum var. adenosepalum 和 V. sinuatum subsp.种皮的装饰由不规则的多角形细胞组成,细胞内有明显而密集的液泡。本研究调查了一些性状在马鞭草品种划分中的重要性。为了支持下属分类中的祖先特征并帮助属的系统学研究,可以应用一些通常与花粉和种子微形态和解剖形态有关的特征。
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引用次数: 0
Investigation of Earthquakes in Turkey with Cluster Analysis 利用聚类分析对土耳其地震进行调查
Pub Date : 2024-03-24 DOI: 10.18466/cbayarfbe.1416472
Ahmet Murat Şen, Zeki Yildiz
In this study, earthquakes with a magnitude of 3 and above between 35-42 North latitudes and 26-45 East longitudes in and around Turkey between 1980 and 2022 were considered. In this study Turkey and its immediate surroundings were divided into 114 unit squares with latitude and longitude circles in order to reveal the similarities in terms of seismicity. It has been applied a cluster analysis by considering the similarities and hence the dissimilarities for the earthquakes occurring in the unit squares in terms of their magnitudes and depths. Since the sample size was high and the analysis included continuous variables, the earthquake data were grouped into 5 clusters using the non-hierarchical clustering method and the relationships within and between the groups were observed.
在这项研究中,考虑了 1980 年至 2022 年期间土耳其及其周边地区北纬 35-42 度和东经 26-45 度之间发生的震级为 3 级及以上的地震。在这项研究中,土耳其及其周边地区被划分为 114 个单位方格,并以经纬度为圆心,以揭示地震的相似性。研究采用了聚类分析方法,考虑了单位方格内发生的地震在震级和震源深度方面的相似性和不相似性。由于样本数量较多,且分析包括连续变量,因此使用非层次聚类方法将地震数据分为 5 个群组,并观察群组内部和群组之间的关系。
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引用次数: 0
Deep Rolling of Al6061-T6 Material and Performance Evaluation with New Type Designed WNMG Formed Rolling Tool 使用新型设计的 WNMG 成形轧制工具对 Al6061-T6 材料进行深轧制和性能评估
Pub Date : 2024-03-15 DOI: 10.18466/cbayarfbe.1405976
O. Adiyaman, Feyza Aydin
In deep rolling, ball and roller type brushing tools are generally used. It is generally difficult to roll deep of contours having curve and conical forms with available rolling tools. The aim of this study is to design experiments with a roller insert that will be alternative to deep rolling inserts used now and can be fixed on the present tool holders and to investigate the usability of them including curve and conical formed work pieces with the help of this designed tool. For this purpose, a spherical insert with a radius of 1 mm in the form of WNMG was designed based on the WNMG insert model and used in deep rolling of Al6061-T6 material using different forms and parameters. 143, 330, 495 N rolling force, 0.04, 0.08, 0.12 mm/rev feed and 400, 600, 800 rpm spindle speed were selected as rolling parameters. By examining the micro-hardness and surface structure of deep-rolled Al6061 parts, the achievability of the results of existing tools in deep rolling was investigated. At the end of the study, it was determined that the new type of rolling tool produced results similar to the existing tools in deep rolling in terms of micro-hardness and surface morphology, which enabled that the work pieces with curve and conical forms could also be rolled, and that this rolling tool could be used as an alternative in deep rolling
在深轧制过程中,一般使用滚珠和滚筒式刷制工具。一般来说,现有的轧制工具很难对曲线和锥形轮廓进行深轧制。本研究的目的是设计一种滚柱式刀片进行实验,这种刀片可替代目前使用的深轧制刀片,并可固定在现有的刀架上,还可借助这种设计的工具研究其可用性,包括曲线和锥形工件。为此,根据 WNMG 刀片模型设计了半径为 1 毫米的 WNMG 形式球形刀片,并使用不同的形式和参数对 Al6061-T6 材料进行深轧制。轧制参数分别为轧制力 143、330、495 N,进给量 0.04、0.08、0.12 mm/rev,主轴转速 400、600、800 rpm。通过检测深轧制 Al6061 零件的微硬度和表面结构,研究了现有工具在深轧制中的可实现性。研究结果表明,新型轧制工具在显微硬度和表面形态方面的结果与现有深轧制工具相似,因此也能轧制出曲线和锥形工件,这种轧制工具可用作深轧制的替代工具。
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引用次数: 0
Electrical Characteristics of Cadmium Sulfide/4-Amino-2-Methyl-Quinoline Heterojunction Structure 硫化镉/4-氨基-2-甲基喹啉异质结结构的电气特性
Pub Date : 2024-03-13 DOI: 10.18466/cbayarfbe.1396129
R. Demi̇r, İsmet Kaya
We formed a heterojunction structure on a p-C10H10N2 film using n-CdS film. It was found that the forward current-voltage (I-V) characteristic of CdS/C10H10N2 exhibited rectifying behavior with a barrier height value of 0.79 eV and an ideality factor value of 1.93 at room temperature. The Schottky barrier diode formed CdS/C10H10N2 displayed non-ideal current-voltage (I-V) behavior, characterized by 1 ideality factor exceeding one. This deviation can be attributed to factors such as the interface layer, interface states, and series resistance. Moreover, the determination of diode parameters, including ideality factor, barrier height, and series resistance, utilized Cheung's functions and a modified Norde function. The comparison revealed consistent barrier height values across all methods, indicating compatibility. Nevertheless, the series resistance values derived from the Norde function were found to be higher than those obtained from the Cheung functions.
我们利用 n-CdS 薄膜在 p-C10H10N2 薄膜上形成了异质结结构。研究发现,在室温下,CdS/C10H10N2 的正向电流-电压(I-V)特性表现为整流行为,势垒高度值为 0.79 eV,理想因子值为 1.93。形成 CdS/C10H10N2 的肖特基势垒二极管显示出非理想的电流-电压 (I-V) 行为,其特征是 1 个表观因子超过 1。这种偏差可归因于界面层、界面状态和串联电阻等因素。此外,利用张氏函数和修正的诺德函数确定了二极管参数,包括理想度系数、势垒高度和串联电阻。比较结果表明,所有方法的势垒高度值一致,表明这些方法具有兼容性。不过,根据 Norde 函数得出的串联电阻值要高于根据 Cheung 函数得出的值。
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引用次数: 0
Optically Anisotropic Films of Colloidal Nanocrystals/Photoluminescent Dye Doped Polymers 各向异性胶体纳米晶体/掺杂染料的光致发光聚合物薄膜
Pub Date : 2024-03-09 DOI: 10.18466/cbayarfbe.1394435
Z. Dikmen
Semiconductor colloidal nanocrystals are attractive materials since they can be adapted to polymers to form hybrid materials and are compatible with many optical applications. Here, synthesis of CdSe/CdS nanorods (NRs) via hot injection method is carried out, followed by preparation of hybrid polymer films from polyethylene glycol monomethyl ether-block-poly(glycidyl methacrylate)-block-poly[2-(diethylamino)ethyl methacrylate] triblock copolymer (MPEG-b-PGMA-b-DEAEMA) at a liquid-air interface. The optical properties of the films are finely adjusted to form optically anisotropic (i.e. dual-color emissive) films by using dyes for the other emitter as desired. Thiazolo[5,4-d] thiazole (TTz)-based dye and 6-carboxy fluorescein were used for this purpose. Tunable emission of TTz dye from blue to green dependent on changing pH value resulted in blue-green emissive polymer films, while red emission of CdSe/CdS NRs caused red emissive films. Phase separation of these materials is achieved by the hexane-insoluble nature of MPEG-b-PGMA-b-DEAEMA and the high solubility of NRs in it. These dual emissive films are promising candidates for waveguides and optical sensors.
半导体胶体纳米晶体是一种极具吸引力的材料,因为它们可以与聚合物结合形成杂化材料,并且与许多光学应用兼容。本文通过热注入法合成了镉硒/镉硒纳米棒(NRs),然后在液气界面上用聚乙二醇单甲醚-嵌段-聚(甲基丙烯酸缩水甘油酯)-嵌段-聚[2-(二乙胺基)甲基丙烯酸乙酯]三嵌段共聚物(MPEG-b-PGMA-b-DEAEMA)制备了杂化聚合物薄膜。通过对薄膜的光学特性进行微调,可形成光学各向异性(即双色发射)薄膜,方法是根据需要为另一种发射体使用染料。噻唑并[5,4-d]噻唑(TTz)染料和 6-羧基荧光素被用于此目的。根据 pH 值的变化,TTz 染料从蓝色到绿色的可调发射产生了蓝绿色发射聚合物薄膜,而 CdSe/CdS NRs 的红色发射则产生了红色发射薄膜。MPEG-b-PGMA-b-DEAEMA 的正己烷不溶性和 NRs 在其中的高溶解性实现了这些材料的相分离。这些双发射薄膜有望用于波导和光学传感器。
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引用次数: 0
A Simple Fluorescence Sensor Based on Merocyanine 540-MnO2 System to Detect Hypochlorite 基于 Merocyanine 540-MnO2 系统的简易荧光传感器用于检测次氯酸盐
Pub Date : 2024-02-07 DOI: 10.18466/cbayarfbe.1384266
A. Şenol
Merocyanine 540 (MC540)-MnO2 system-based fluorescence sensor is reported as an anion sensor in aqueous solution. MnO2 was synthesized in the presence of KMnO4 and CTAB using MOPS buffer. The formation of MnO2 was first confirmed by a color change and characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and absorption spectroscopy techniques. Next, the interaction of MC540 with MnO2 in aqueous solution was investigated at various conditions by UV–Vis. absorption and fluorescence spectroscopy and the MC540-MnO2 system to use in fluorescence sensor studies was determined. The sensing ability of the MC540-MnO2 was tested to detect anions as a “Turn-off” fluorescent sensor. The MC540-MnO2 revealed to be high selectivity and sensitivity to detect ClO- ions without being affected by the other thirteen anions. The detection limits for ClO- were evaluated in two different concentration ranges and calculated to be 0.14 µM at 0.33-4.46 µM and 0.38 µM at 5.06-14.30 µM, respectively. Furthermore, interference experiments for ClO- in the presence of other anions were carried out, and it turned out that the system could detect ClO- without being affected by other anions.
据报道,基于 Merocyanine 540 (MC540)-MnO2 系统的荧光传感器是水溶液中的阴离子传感器。MnO2 是在 KMnO4 和 CTAB 的存在下使用 MOPS 缓冲液合成的。首先通过颜色变化确认了 MnO2 的形成,并使用 X 射线衍射 (XRD)、傅立叶变换红外光谱 (FTIR) 和吸收光谱技术对其进行了表征。接着,通过紫外可见吸收光谱和荧光光谱研究了 MC540 与水溶液中二氧化锰在不同条件下的相互作用,并确定了用于荧光传感器研究的 MC540-MnO2 系统。测试了 MC540-MnO2 作为 "关闭 "荧光传感器检测阴离子的传感能力。结果表明,MC540-MnO2 在检测 ClO- 离子方面具有很高的选择性和灵敏度,而不受其他 13 种阴离子的影响。在两个不同的浓度范围内对 ClO- 的检测限进行了评估,计算结果分别为 0.33-4.46 µM 时为 0.14 µM,5.06-14.30 µM 时为 0.38 µM。此外,还进行了其他阴离子对 ClO- 的干扰实验,结果表明该系统可以检测 ClO-,而不受其他阴离子的影响。
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引用次数: 0
Investigation of Effect of Air Gap between Surface and Bolus on Dose Distribution for 6 MV Photon Beam 研究表面与注射器之间的气隙对 6 MV 光子束剂量分布的影响
Pub Date : 2023-12-28 DOI: 10.18466/cbayarfbe.1391876
O. Gül
In radiotherapy, tissue equivalent boluses are frequently used in the treatment of superficially located tumors. The air gap between the patient's skin and the bolus may cause dosimetric uncertainties. This study aims to dosimetrically investigate the effect of the air gap between the surface and the bolus on dose distribution. Computed tomography (CT) images of the phantom were obtained and transferred to the treatment planning system (TPS). In the TPS, a bolus was placed on the phantom surface and then air gaps were created between the bolus and the surface. The effect of the air gaps between the surface and the 5 mm thick bolus on the dose distribution was analyzed with the point doses obtained from the TPS. For the 6 MV X-ray, it was observed that the air gap negatively affected the surface doses calculated by TPS. Accordingly, an inverse correlation was found between air gap and surface dose. It is recommended that bolus use, especially in curved anatomical regions, should be applied before CT scanning as much as possible. When using bolus material in radiotherapy, it is recommended to be careful not to leave an air gap between the surface and the bolus.
在放射治疗中,组织等效栓剂常用于治疗位置较浅的肿瘤。患者皮肤与栓剂之间的空气间隙可能会导致剂量测定的不确定性。本研究旨在从剂量学角度研究表面与栓剂之间的空气间隙对剂量分布的影响。研究人员获取了模型的计算机断层扫描(CT)图像,并将其传输到治疗计划系统(TPS)。在 TPS 中,栓剂被放置在模型表面,然后在栓剂和表面之间形成气隙。利用 TPS 获得的点剂量分析了表面和 5 毫米厚的栓剂之间的气隙对剂量分布的影响。对于 6 MV X 射线,观察到空气间隙对 TPS 计算出的表面剂量有负面影响。因此,气隙与表面剂量之间存在反相关关系。建议尽可能在 CT 扫描前使用栓剂,尤其是在弯曲的解剖区域。在放射治疗中使用栓剂材料时,建议注意不要在表面和栓剂之间留下气隙。
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引用次数: 0
Dose Determination of Fluvial Sediments in Manisa 马尼萨冲积沉积物的剂量测定
Pub Date : 2023-12-21 DOI: 10.18466/cbayarfbe.1381567
Müjde DURUKAN GÜLTEPE, Arzu Ege
Quartz, which is one of the most abundant minerals in nature, can be found in magmatic and metamorphic forms, as well as the usual components of granite and sedimentary formations. Quartz minerals, which are also known as the main component of quartzites, are also known as gangue minerals in many mineralizations. Quartz samples from two different sampling levels, namely the Kaletepe lower and the Kaletepe upper region, used in the study were prepared. Thermoluminescence (TL) glow curves of the samples exposed to radiation with a 90Sr/90Y β source were recorded with a TLD reader. While peaks were obtained at approximately 270 °C from the glow curves of the Kaletepe lower samples irradiated with β source, peaks were obtained at approximately 270 °C and 350 °C from the Kaletepe upper samples. When the annual average dose and age values of the lower and upper Kaletepe samples are examined, it can be said that it was formed in a time period of ~8000 years between two areas with a height difference of 130m.
石英是自然界中最丰富的矿物之一,可以在岩浆岩和变质岩中找到,也是花岗岩和沉积岩的常见成分。石英矿物也被称为石英岩的主要成分,在许多矿化过程中也被称为煤矸石矿物。研究中使用的石英样品来自两个不同的采样层,即卡莱特佩下层和卡莱特佩上层地区。用 TLD 阅读器记录了样品在 90Sr/90Y β 源辐射下的热释光(TL)辉光曲线。用 β 源辐照的 Kaletepe 下部样品的辉光曲线在大约 270 ℃ 出现峰值,而 Kaletepe 上部样品的辉光曲线在大约 270 ℃ 和 350 ℃ 出现峰值。如果对卡莱特佩下层和上层样品的年平均剂量和年龄值进行研究,可以说它是在高度相差 130 米的两个地区之间约 8000 年的时间内形成的。
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引用次数: 0
On 7-Dimensional Nilpotent Leibniz Algebras With 1-Dimensional Leib Ideal 论具有一维莱布理想的七维无势莱布尼兹代数
Pub Date : 2023-12-18 DOI: 10.18466/cbayarfbe.1339702
İsmail Demi̇r
Leibniz algebras are nonanticommutative versions of Lie algebras. Lie algebras have many applications in many scientific areas as well as mathematical areas. Scientists from different disciplines have used specific examples of Lie algebras according to their needs. However, we mathematicians are more interested in generality than in obtaining a few examples. The classification problem for Leibniz algebras has an intrinsically wild nature as in Lie algebras. In this article, the approach of congruence classes of bilinear forms is extended to classify certain subclasses of seven-dimensional nilpotent Leibniz algebras over complex numbers. Certain cases of seven-dimensional complex nilpotent Leibniz algebras of those with one-dimensional Leib ideal and derived algebra of codimension two are classified.
莱布尼兹代数是非反交换版本的李代数。李代数在许多科学领域和数学领域都有很多应用。不同学科的科学家根据自己的需要,使用了特定的李代数例子。然而,我们数学家更感兴趣的是通用性,而不是获得几个例子。莱布尼兹代数的分类问题与李代数一样,具有内在的野性。本文将双线性形式的全等类方法扩展到复数上的七维零能莱布尼兹代数的某些子类的分类。本文对具有一维莱布理想和二维衍生代数的七维复数零势莱布尼兹代数的某些情况进行了分类。
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引用次数: 0
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Celal Bayar Üniversitesi Fen Bilimleri Dergisi
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