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^(153)Dy高自旋态的能级结构及缺中子Dy核的形状随中子数与自旋态的变化

高能物理与核物理 1990年第12期14卷 1103-1109页

作者：朱胜江马文超 m.a.quader H.EmLING T.L.KHOO I.AHmAD P.J.DALY B.K.DICHTER m.DRIGERT U.GARG Z.W.GRABOWSKI R.HOLZmANN R.V.F.IANSSENS m.PIIPARINEN W.H.TRZASKA T.-F.WANG 清华大学现代应用物理系 Purdue University West Lafayette Indiana 47907 U. S. A. Argornne National Laboratory Argonne Illinois 60439 U. S. A University of Notre Dame Notre Dame Indiana 46556 U. S. A Argornne National Laboratory Argonne Illinois 60439 U. S. A.

通过在束γ谱的实验研究,建立了^(153)Dy的非常高的自旋态的能级图,最高自旋态为81/2.所用核反应为^(122)Sn(^(36)s,5n),束流能量165meV.在同质异能态(I=47/2)以上,能级结构展示出极端复杂的单粒子跃迁特性.对缺中子Dy核的形状随中子数... 详细信息

通过在束γ谱的实验研究,建立了^(153)Dy的非常高的自旋态的能级图,最高自旋态为81/2.所用核反应为^(122)Sn(^(36)s,5n),束流能量165meV.在同质异能态(I=47/2)以上,能级结构展示出极端复杂的单粒子跃迁特性.对缺中子Dy核的形状随中子数N及自旋态I变化的系统性进行了讨论.

关键词： ^153Dy 自旋态能级结构

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Effect of an amalgamated antibiotic and its connection to cytogenotoxicity and histo-architectural malformations in stinging catfish

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Emerging Contaminants 2022年第1期8卷 381-390页

作者： mostt Tajnova Islam Golam mohammod mostakim md Golam Azom Umme Ohida Rahman mst mansura Khan mohd Golam quader Khan m.Sadiqul Islam Department of Fisheries Biology&Genetics Bangladesh Agricultural UniversityMymensingh2202Bangladesh Graduate Training Institute(GTI) Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of marine Fisheries Science Bangladesh Agricultural UniversityMymensingh2202Bangladesh

Intensive fish farming has an excessive prevalence of infection and is typically controlled by the administration of *** amalgamated antibiotics are a relatively novel therapeutic idea and more effective than traditional antibiotic monotherapy,they can also have a toxic effect on the fish body when it is administered *** study investigated the cyto-genotoxic effects on erythrocytes and histo-architectural malformations in the liver and kidneys of stinging catfish(Heteropneustes fossilis)in relation to Enrocip plus use as an amalgamated antibiotic *** experimental fish with an initial average weight of 17.38±1.94 g were divided into four treatment groups with antibiotic doses:according to the recommendation of the manufacturer 0.167 mg/ml Enrocip plus was used as a standard dose(x)and it was treated as T3,while 0%of the standard dose(0×mg/ml),1/2×(0.083 mg/ml),and 2×(0.333 mg/ml)were treated as T1,T2 and T4,respectively for a period of 30 *** observed erythrocyte cellular deformities(ECD)were twin,tear-drop,serrated,tail budded and de-membranated cells,whereas the erythrocyte nuclear deformities(END)were a nuclear bridge,bi-nucleus,nuclear termination,karyopyknosis,and micronucleus at different concentrations of Enrocip *** ECD and END percentages experienced the interaction of antibiotic dose and exposure time,and were significantly different(Pmild to severe necrosis,vacuole formation,and hepatopancreas damage were also observed in the liver of the treated fish whereas highly degraded renal tubules and hematopoietic tissue,glomerular occlusion,and vacuolation were evident in the *** current investigation fully emphasizes the adverse effects of amalgamated antibiotics on the cytogenotoxicity and the histomorphology of the kidneys and liver of ***,the use of an amalgamated antibiotic in aquaculture must be carefully evaluated.

关键词： Antibiotic Cytotoxicity Genotoxicity Histomorphological defects Stinging catfish

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Biodegradable Colour Polymeric Film (Starch-Chitosan) Development: Characterization for Packaging materials

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Open Journal of Organic Polymer materials 2016年第1期6卷 11-24页

作者： m. Z. I. mollah N. Akter F. B. quader S. Sultana R. A. Khan Nuclear and Radiation Chemistry Division Institute of Nuclear Science and Technology Bangladesh Atomic Energy Commission Dhaka Bangladesh Department of Applied Chemistry and Chemical Engineering University of Dhaka Dhaka Bangladesh

Biodegradable starch-based chitosan reinforced composite polymeric films were prepared by casting. The chitosan content in the films was varied from 20% to 80% (w/w). Tensile strength (TS) was improved significantly with the addition of chitosan but elongation at break (EB %) of the composites decreased. Tensile strength of the composites raised more with the addition of the acacia catechu content in the films varied from 0.05% to 0.2% (w/w). The better thermal stability of this prepared film was confirmed by thermo-gravimetric analysis. Structural characterization was done by Fourier transform infrared spectroscopy. Surface morphologies of the composites were examined by scanning electron microscope (SEm) which suggested sufficient homogenization of starch, chitosan and acacia catechu. Water uptake was found lower for final composites in comparison to starch/chitosan and chitosan films. The satisfactory rate of degradation in the soil is expected that the final composite film is within less than 6 months. The developed films intended to use as the alternative of synthetic non-biodegradable colored packaging films.

关键词： Chitosan Starch Acacia Catechu Composite Biodegradable Packaging

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