Clay Minerals Deposit of Halakabad (Sabzevar- Iran)

Clay minerals are expanded in south of Sabzevar. They are identified with light color in the filed. The XRD and XRF chemical and mineralogical studies on the Clay minerals indicated that their main clay minerals are Kaolinite, Illite and Dickite. Pyrophyllite is minor clay mineral. Quartz and Sanidine non clay minerals are present with clay minerals .Ratio of Al2O3 is about 40 per cent, it is very good for industrial minerals .Volcanic rocks are origin clay minerals .Their composition are basic to acidic. In south of Sabzevar town there is a small part of these rocks available which include volcanic and volcaniclastic rocks .Geochemical and petrographic studies showed that their compositions are generally  acidic and  intermediates  and are of Dacite and Rhyolite and Andesite rocks type that have changed into clay minerals

Localized surface plasmon resonance of dielectrically-coated gold nanoparticle arrays

In this thesis, I study the localized surface plasmon resonance phenomenon in dielectrically coated, closely-spaced gold nanoparticles. I examine the effect of a dielectric coating (that models the sensing of a biomolecular analyte layer) on the optical absorption of these particles. The extinction spectra and the electric field around the particles are calculated. The particles are chosen to be either spheres or hemispheres to be representative of solution phase (3D) or surface (2D) experiments. Calculations are based on the Discrete Dipole Approximation method. In particular, I study the effect of a dielectric coating on the localized surface plasmon spectra around clusters of coated gold nanohemispheres. Based on this study, I propose a new sensing mechanism for detecting biomolecules attached onto a linear array of closely-spaced gold nanohemispheres immobilized on a waveguide surface

State transfer based on classical nonseparability

We present a state transfer protocol that is mathematically equivalent to quantum teleportation, but uses classical nonseparability instead of quantum entanglement. In our implementation we take advantage of nonseparability among three parties: orbital angular momentum (OAM), polarization, and the radial degrees of freedom of a beam of light. We demonstrate the transfer of arbitrary OAM states, in the subspace spanned by any two OAM states, to the polarization of the same beam

Digital spiral object identification using random light

Photons that are entangled or correlated in orbital angular momentum have been extensively used for remote sensing, object identification and imaging. It has recently been demonstrated that intensity fluctuations give rise to the formation of correlations in the orbital angular momentum components and angular positions of random light. Here, we demonstrate that the spatial signatures and phase information of an object, with rotational symmetries, can be identified using classical orbital angular momentum correlations in random light. The Fourier components imprinted in the digital spiral spectrum of the object, measured through intensity correlations, unveil its spatial and phase information. Sharing similarities with conventional compressive sensing protocols that exploit sparsity to reduce the number of measurements required to reconstruct a signal, our technique allows sensing of an object with fewer measurements than other schemes that use pixel-by-pixel imaging. One remarkable advantage of our technique is the fact that it does not require the preparation of fragile quantum states of light and works at both low- and high-light levels. In addition, our technique is robust against environmental noise, a fundamental feature of any realistic scheme for remote sensing.Comment: 5 pages, 4 figure

Study on hydrophobic modification of basil seed gum-based (BSG) films by octenyl succinate anhydride (OSA)

The main objective of this study was to evaluate the changes in the characteristics of basil (Ocimum bacilicum L.) seed gum (BSG) films after modification with octenyl succinate anhydride (OSA) at different OSA:BSG weight ratios (WRs) of 0, 0.01 and 0.03. HPLC analysis revealed that the amount of added OS groups was 0%, 0.28%, and 1.01%, respectively. The introduction of OS groups along the BSG backbone was also confirmed by FT-IR and NMR analysis. XRD results revealed no significant change of physical state after modification. The contact angle (i.e., hydrophobicity) of modified BSG films was higher than that of control film. A decrease in the film solubility in water (29%) and water vapor permeability (50%), but an increase in density (14.28%) and opacity (21.37%) was observed after modification at the WR of 0.03. Also, the results showed that modification with OSA had no significant influence on the film thickness, moisture content and color properties. BSG modification with OSA at the WR of 0.03 significantly increased the flexibility and ultimate strength of respective films. The results of this study showed that OSA-modified BSG is a good candidate for developing edible films and coating with relatively high resistance to water

Wigner distribution of twisted photons

We present the first experimental characterization of the azimuthal Wigner distribution of a photon. Our protocol fully characterizes the transverse structure of a photon in conjugate bases of orbital angular momentum (OAM) and azimuthal angle (ANG). We provide a test of our protocol by characterizing pure superpositions and incoherent mixtures of OAM modes in a seven-dimensional space. The time required for performing measurements in our scheme scales only linearly with the dimension size of the state under investigation. This time scaling makes our technique suitable for quantum information applications involving a large number of OAM states

Anti-Streptolysin O (ASO) titer in children and adolescents (7-14 years old) of Shahrekord, 1998

تب روماتیسمی حاد ضایعه التهابی تاخیری و غیر چرکی عفونت استرپتوکوکی مجاری تنفسی فوقانی است. معیارهای تشخیص این بیماری متکی بر یافته های کلینیکی و با تایید یافته های حمایتی آزمایشگاهی دال بر ردپا و سابقه عفونت استرپتوکوکی می باشد. تست آنتی استرپتولیزین O یا (Anti-streptolysin O=ASO) یکی از معیارهای تشخیصی مزبور است. تفسیر تیتر ASO بایستی با احتیاط صورت گیرد زیرا حدود طبیعی این تست بستگی به تیتر نرمال آن در هر جامعه، نوع تست، سن بیمار و ناحیه جغرافیایی دارد. باتوجه به تفاوت های موجود در نتایج تحقیقات و باتوجه به شرایط اختصاصی-اجتماعی و جغرافیایی شهرستان شهرکرد، میانه (Median) و حداکثر مقدار نرمال تیتر سرمی ASO را در میان 400 نفر دانش آموز دختر و پسر 14-7 سال مورد بررسی قرار دادیم که مقدار آن معادل 166 TU یا (Todd unit) برآورد گردید. آزمون آماری Mann Whitney U تفاوت معنی داری بین سطح ASO در گروه های مختلف سنی و جنسی نشان نداد لیکن آزمون آماری در ارتباط تیتر ASO و بعد خانوار و مناطق 9 گانه (تقسیم بندی جغرافیایی) تفاوت معنی دار نشان داد (