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NOMA Superiority Condition for Rayleigh Fading Channels 瑞利衰落信道的NOMA优势条件
Pub Date : 2021-06-06 DOI: 10.18586/MSUFBD.927099
Enis Körpe, Bilge Kartal Çetin
(Kabul): 06.06.2021 ABSTRACT Non-orthogonal Multiple Access (NOMA) is a new generation multiple access technique in which multiple users simultaneously share the same frequency band. In the implementation of NOMA, the choice of user pairs that will use the same frequency is a determining factor for the NOMA superiority condition due to Successive Interference Cancellation (SIC) mechanism on the receiver. However, performance of NOMA depends on SIC mechanism which relies on the order of the user in a NOMA cluster. In the literature, it has been shown that utilizing distance based order of the users for user pairing outperforms over the random pairing and an analytical boundary distance is derived for NOMA superiority condition for a path loss based channel model. In this study, the path loss based NOMA superiority condition respect to the Orthogonal Multiple Access (OMA) was investigated in terms of the spectral efficiencies for Rayleigh channel model in a cellular uplink and the results were compared with an analytical boundary value derived for a path loss based channel model in the literature. In addition, the effect of power ratio of the users on the NOMA superiority condition is investigated and accuracy of the derived analytical model is validated with numerical results for both channel models. The results reveal that the NOMA superiority condition based on distance changes depend on the assumed channel model, but assuming the channel as Rayleigh fading or path loss based channel does not make a significant difference. In addition, it is observed that the accuracy of the derived NOMA superiority condition changes with the power ratios for both channel models and the gap between numerical and analytical results is larger in Rayleigh channel compared to path loss based
非正交多址(NOMA)是指多个用户同时共享同一频段的新一代多址技术。在NOMA实现中,由于接收机上的连续干扰消除(SIC)机制,选择使用相同频率的用户对是NOMA优势条件的决定因素。然而,NOMA的性能依赖于SIC机制,SIC机制依赖于NOMA集群中用户的顺序。在文献中,已经证明利用基于距离的用户顺序进行用户配对优于随机配对,并且为基于路径损耗的信道模型的NOMA优势条件导出了解析边界距离。在本研究中,根据蜂窝上行链路中瑞利信道模型的频谱效率,研究了基于路径损耗的NOMA相对于正交多址(OMA)的优势条件,并将结果与文献中基于路径损耗的信道模型的解析边界值进行了比较。此外,还研究了用户功率比对NOMA优势条件的影响,并通过两种信道模型的数值结果验证了推导的解析模型的准确性。结果表明,基于距离变化的NOMA优势条件依赖于假设的信道模型,但假设信道为瑞利衰落或基于路径损耗的信道没有显著差异。此外,还观察到两种信道模型的NOMA优势条件的精度随功率比的变化而变化,并且在瑞利信道中与基于路径损耗的信道相比,数值结果与解析结果之间的差距更大
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引用次数: 0
Bazı Hibrit Mısır (Zea mays L.) Çeşitlerinin Muş Ekolojik Şartlarında Performanslarının Belirlenmesi
Pub Date : 2021-05-22 DOI: 10.18586/MSUFBD.886705
Sami Akan, H. Kiliç
This study was conducted to determine appropriate maize varieties for grain production in Muş ecological conditions. The research was conducted during main crop growth season of 2015. The experimental design was a randomized complete block with three replication and fifteen corn genotypes were used in the experiment. Results revealed that, considerable differences were found among varieties in grain yield. The highest grain yield was obtained in Dekalp6724 variety with 1193.95 kg da -1 while the variety with the lowest grain yield was Adasa-16 with 800.70 kg da -1 . As a result of the study, Dekalp-6101 and Ada-8924 stood out in terms of low grain moisture content, while Dekalp 6724, Kalends and As-71 were identified as the most promising varieties in terms of grain yield.
本研究旨在确定木壤生态条件下适合粮食生产的玉米品种。研究在2015年作物主要生长期进行。试验设计为随机完全区组,采用3个重复,共15个玉米基因型。结果表明,籽粒产量在品种间存在较大差异。籽粒产量最高的品种为Dekalp6724,为1193.95 kg da -1;籽粒产量最低的品种为Adasa-16,为800.70 kg da -1。结果表明,Dekalp-6101和Ada-8924籽粒含水量较低,而Dekalp 6724、Kalends和As-71是籽粒产量最有潜力的品种。
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引用次数: 0
An Evaluation on the Behaviors of Aftershock Sequence of November 26th, 2019 Earthquake, ML=6.3, North of Durrës, Albania 阿尔巴尼亚Durrës以北2019年11月26日ML=6.3地震余震序列行为评价
Pub Date : 2021-05-03 DOI: 10.18586/MSUFBD.899411
S. Öztürk, R. Ormeni
(Kabul): 03.05.2021 ABSTRACT A comprehensive assessment of aftershocks occurrence for the November 26 th , 2019 earthquake, M L =6.3, 16 km north of Durrës, Albania was achieved. b -value was estimated as 0.88 ±0.07. b -value is close to 1.0 and relatively small b -value may be resulted from the plenty of larger aftershocks with M L  4.0. p -value was calculated as 1.23±0.08 with Mmin =3.1 and Tstart =0.0034 days. This high p -value may be a result of the relative fast decay rate of aftershock activity. Dc -value was calculated as 1.74±0.09 and it means that aftershocks are homogeneously distributed at larger scales. The smallest b -values and the largest p -values were observed in the north, northwest and northeast parts of the mainshock. The smaller b -values correlate with the larger stress variations, whereas the larger p -values are related to the maximum slip after mainshock. Consequently, region-time-magnitude analyses of the aftershocks occurrence may supply important clues for the fast evaluations of real
摘要对2019年11月26日发生在阿尔巴尼亚Durrës以北16公里的里氏6.3级地震的余震进行了综合评估。B值估计为0.88±0.07。b -值接近1.0,相对较小的b -值可能是由于M L L≥4.0的大量较大余震造成的。计算p值为1.23±0.08,其中Mmin =3.1, Tstart =0.0034天。这种高p值可能是余震活动衰减速度相对较快的结果。计算的Dc值为1.74±0.09,说明余震在较大尺度上分布均匀。在主震的北部、西北部和东北部,b值最小,p值最大。较小的b值与较大的应力变化有关,而较大的p值与主震后的最大滑移有关。因此,余震发生的区域-时间-震级分析可以为快速评价余震提供重要线索
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引用次数: 1
Bitkisel Orjinli İmmunmodülatörler ve Hayvan Sağlığında Kullanım Olanakları
Pub Date : 2021-03-31 DOI: 10.18586/MSUFBD.879022
Kerim Emre Yanar, M. Aktaş
Animal Health ABSTRACT Immunomodulators are defined as substances that stimulate or suppress the immune system by affecting the immune system, or have regulatory properties on this system. These substances include some bacterial and bacterial products, plant-derived immunomodulators, animal extracts, vaccines, complex carbohydrates, nutritional factors, cytokines and some synthetic chemical compounds. In nature, there are also many plants with immunomodulatory effects. In this review study, plants with immunomodulatory effects, their active ingredients and their mode of action were examined in detail. In addition, results of the studies regarding with possibilities of using these herbal immunomodulators in the treatment of pet animals, ruminants as well as horses
免疫调节剂被定义为通过影响免疫系统刺激或抑制免疫系统,或对免疫系统具有调节特性的物质。这些物质包括一些细菌和细菌产物、植物源性免疫调节剂、动物提取物、疫苗、复合碳水化合物、营养因子、细胞因子和一些合成化合物。在自然界中,也有许多具有免疫调节作用的植物。本文对具有免疫调节作用的植物、有效成分及其作用方式进行了综述。此外,研究结果关于使用这些草药免疫调节剂治疗宠物动物,反刍动物和马的可能性
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引用次数: 0
Metil Paration’nun Piruvat Kinaz Enzim Aktivitesine Etkisi
Pub Date : 2021-02-21 DOI: 10.18586/MSUFBD.838448
Ferda Ari, Egemen Dere
Enzyme Activity ABSTRACT Methyl parathion is an organophosphate group insecticide used against pests in agriculture and general fields. Insecticides have a significant toxic effect on the environment and living organisms. Methyl parathion, which causes different toxicity in humans, is also known to affect important enzymes that control metabolism. Pyruvate kinase that allosteric properties (EC.2.7.1.40) is the last enzyme of glycolysis and provides control in glycolysis followed by molecular pathways. In our study, the effect of Methyl parathion on Pyruvate kinase enzyme activity was investigated. Methyl parathion LD 50 dose (7mg.kg-1) was administered intraperitoneally to male and female rats at different periods (2, 4, 8, 16, 32, 64 and 72 hours). Pyruvate kinase enzyme activity was analyzed in liver, kidney, brain and small intestine tissues of rats. As a result of exposure of Methyl parathion, increases in Pyruvate kinase enzyme activity were generally determined in rat tissues. It was remarkable that the activations took place earlier, especially in the brain tissue. It was observed that these activations in liver, kidney and small intestine tissues were earlier in females than in males. As a result, the application of Methyl parathion was found to cause increases in pyruvate kinase enzyme activity in rat tissues. It was determined that methyl parathion affects glucose metabolism and the other metabolic pathways. Therefore, it should be considered that methyl parathion insecticide affects metabolism and may cause different health problems and precautions should be taken in use by paying attention to the application dose recommended by the World
摘要对硫磷甲酯是一种有机磷类杀虫剂,广泛用于农业和一般农田的害虫防治。杀虫剂对环境和生物具有显著的毒性作用。甲基对硫磷会对人体产生不同的毒性,也会影响控制新陈代谢的重要酶。丙酮酸激酶具有变构性(EC.2.7.1.40),是糖酵解的最后一种酶,在糖酵解之后的分子途径中起控制作用。本研究考察了对硫磷对丙酮酸激酶活性的影响。分别于2、4、8、16、32、64、72 h给药雄性和雌性大鼠腹腔注射甲基对硫磷ld50 (7mg.kg-1)。测定大鼠肝、肾、脑、小肠组织中丙酮酸激酶活性。由于暴露于甲基对硫磷,通常确定大鼠组织中丙酮酸激酶酶活性增加。值得注意的是,激活发生得更早,尤其是在脑组织中。在肝脏、肾脏和小肠组织中观察到这些激活在女性中比男性早。结果发现,应用甲基对硫磷可引起大鼠组织中丙酮酸激酶酶活性的增加。确定甲基对硫磷影响糖代谢和其他代谢途径。因此,应考虑到甲基对硫磷杀虫剂影响代谢,并可能引起不同的健康问题,在使用时应注意注意世界推荐的使用剂量
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引用次数: 0
Covid-19’un Lineer Hücresel Dönüşümler Yardımıyla Matematiksel Modellenmesi
Pub Date : 2020-12-12 DOI: 10.18586/msufbd.781459
Ferhat Şah
Tum dunyayi saran Covid-19 virusu nedeniyle ulkeler zor gunler gecirmektedir. Ilk olarak Cin’in Wuhan kentinde ortaya cikan bu virus sonrasinda hemen hemen tum dunyaya yayilmistir. Peki bu yayilma nasil olmustur? Bu virusun hizla yayilmasindaki ulkelerin rolu nedir? Virusun yayilmamasi icin insanlar uzerlerine dusen gorevleri yerine getirmis midir?  Bu sorulara matematiksel bir bakis acisi ile cevap vermeye calisalim. Bu calismada, virusun yayilmasinin nasil oldugunu matematiksel olarak aciklanmaya calisilmistir. Matematiksel metot olarak iki boyutlu hucresel donusumler kullanilmistir. Bu donusumlerin gecis fonksiyonlari yardimiyla yayilma durumlari incelenmistir. Boylece virusun yayilma seklinin matematiksel bir modeli cikarilmis oldu. Bu noktada, her ne kadar devletler onlem alsada, kurallara uymayan insanlarin virusu nasil diger insanlara aktardiginin matematiksel olarak modellenmesi calisildi.
由于 "Covid-19 "病毒在全球蔓延,各国正处于困难时期。这种病毒最初出现在中国武汉,现已几乎蔓延到全世界。那么,这种传播是如何发生的呢?各国在这种病毒的迅速传播中扮演了什么角色?人们是否尽到了防止病毒传播的责任? 让我们试着从数学的角度来回答这些问题。在这项研究中,我们试图从数学角度解释病毒是如何传播的。二维细胞变换被用作一种数学方法。在过渡函数的帮助下分析了这些变换的传播状态。这样就得出了病毒传播的数学模型。在这一点上,我们尝试对不遵守规则的人如何将病毒传播给其他人的情况进行数学建模,即使这些状态采取了预防措施。
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引用次数: 0
Kazıcı Yükleyici Makineler için Kazıcı Kepçe ile Çalışan Hidrolik Bir Çene Tasarımı ve Denenmesi
Pub Date : 2019-06-30 DOI: 10.18586/msufbd.550535
Yusuf Demi̇r, Yusuf Usta
Gunumuzde bircok farkli insaat islerinin tamamlanabilmesi icin kazici yukleyici makinelere ihtiyac duyulmaktadir. Bu makineler onunde farkli yukleme isleri icin yukleyici mekanizma grubu, arkasinda ise farkli kazi isleri icin kazici mekanizma grubu bulundurmaktadir. Yapilacak is grubuna gore de farkli tip yukleyici ve kazici atasmanlari bulunmaktadir. Bu calismada kazici yukleyici makinelerin kazici tarafinda kullanilan ve malzemelerin kavranarak yer degistirilmesi ilkesine gore calisan bir hidrolik cene mekanizmasi tasarlanmis ve prototip imalati yapilmistir. Bu tasarim ile makine uzerinde tahribata gerek olmayarak montaj edilebilen, amaca ve malzemeye gore ucu degistirilebilen, ucun ters montaji yapilarak riper atasmani olarak da kullanilabilen mekanizma gelistirilmistir. Tasarimi tamamlanan atasmanin analizleri gerceklestirilmis, yapilan prototip uzerinde testler uygulanmis, boylece tasarim dogrulamasi yapilarak uyumu incelenmistir.
如今,许多不同的建筑工程都需要挖掘装载机来完成。这些机器有用于不同装载工程的起重机械组和用于不同挖掘工程的挖掘机械组。根据要完成的工程类别,装载机和挖掘机的附件也有不同类型。本研究设计了一种液压钳机构,用于挖掘装载机的挖掘机侧,根据抓取和移位材料的原理工作。通过这一设计,开发出了一种无需破坏机器即可组装的机构,其顶端可根据用途和材料进行更换,并可通过反向组装顶端作为开沟附件使用。已对所设计的附件进行了分析,并对原型进行了测试,从而验证了设计及其兼容性。
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引用次数: 0
2- (2-hidroksi-5-metoksi-3-nitrobenziliden)-N-metilhidrazin-1-karbotioamid Molekülünün Kuantum Kimyasal Karakterizasyonu
Pub Date : 2019-06-30 DOI: 10.18586/msufbd.524832
H. Gümüş
Bu calismada, 2-(2-hidroksi-5-metoksi-3-nitrobenziliden)-N-metilhidrazin-1-karbotioamid (SL) molekulunun geometrik yapisi taban durumunda Gaussian 09W programi kullanilarak optimize edilmistir. Optimize edilen molekuler yapinin sonuclari sunuldu. X-isini kirinimi sonuclari ile mukayese edildi. SL molekulunun teorik harmonik titresimsel dalga boylari hesaplandi ve deneysel degerlerle karsilastirildi. Deneysel degerler ve hesaplanan degerler birbiri ile uyum icerisinde bulunmustur. SL molekulu, optiksel gecisler icin UV-gorunur spektral calismalar ile karakterize edilmistir. Ayrica, 1 H ve 13 C NMR kimyasal kayma degerleri, dogrusal olmayan optik analizi, sinir molekuler yorunge enerjileri, molekuler yuzeyler, Mulliken yuku ve atomik polar tensor bazli yukler incelenmistir. Tum teorik hesaplamalar LanL2DZ temel seti ile B3LYP ve HSEH1PBE yogunluk fonksiyonel teorisi (DFT) yontemi kullanilarak hesaplanmistir.
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引用次数: 0
İyonosferik E Bölgesi Akım Yoğunlukları Üzerinde Stratosferik QBO’nun Olası Etkisi
Pub Date : 2018-06-28 DOI: 10.18586/MSUFBD.438092
Selçuk Sağır, Osman Özcan
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引用次数: 0
Kentsel Yaşama Bilimsel, Görsel, Rekreasyonel Katkılar; Botanik Bahçeleri
Pub Date : 2018-06-28 DOI: 10.18586/msufbd.438103
Yasemin Muminoğlu, B. T. Tahta, B. G. Aslan
Urban living environments lose their state of greenness every other day, under the dense pressure of technological advancements. This disappearance in green areas accompanies many other losses. However, green space systems in cities are significant investments for citizens, given the fact that they help people have healthy lives in the future. These systems are important components to contribute to sustaining natural life and forming microclimate. In addition, they are recreational areas that bring positive effects on human psychology by offering different natural landscapes every season. This study aims to emphasize the importance of green areas within the sample of Botanical Gardens. Botanical gardens embody different natural beauties and help a variety of plants, indigenous to different climates, be introduced to people. There are specific areas in the botanical gardens that contain a diversity of plants exhibited for educational purposes. Furthermore, since these areas have a major function for the tourism industry, they are effective for strengthening the socio-economic structures of the given countries.
在科技进步的密集压力下,城市生活环境每隔一天就会失去绿色的状态。绿色区域的消失伴随着许多其他损失。然而,城市中的绿色空间系统对市民来说是一项重大投资,因为它们有助于人们在未来过上健康的生活。这些系统是维持自然生命和形成小气候的重要组成部分。此外,它们是休闲区,每个季节都提供不同的自然景观,给人的心理带来积极的影响。本研究旨在强调植物园样本中绿地的重要性。植物园体现了不同的自然美景,并帮助将不同气候下的各种植物介绍给人们。植物园里有一些特定的区域,里面陈列着各种各样的植物,用于教育目的。此外,由于这些地区对旅游业具有重要作用,因此对加强有关国家的社会经济结构是有效的。
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引用次数: 2
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Muş Alparslan Üniversitesi Fen Bilimleri Dergisi
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