176 research outputs found
CCDC 1435119: Experimental Crystal Structure Determination
No full textRelated Article: Ashok Keerthi, Cunbin An, Mengmeng Li, Tomasz Marszalek, Antonio Gaetano Ricciardulli, Boya Radha, Fares D. Alsewailem, Klaus Müllen, Martin Baumgarten|2016|Polym.Chem.|7|1545|doi:10.1039/C6PY00023
Universal Oneness as the Ulterior Motive of the Incarnation of Radha and Krishna
Full text linkMy Affair with Radha, the debut work of Kunal Desai is the dedication to his readers who firmly believe in the divine couple Radha and Krishna. The intention of the author was to spread the awareness of the significance of divine love to the world through the example of Radha and Krishna who remain to be the epitome of transcendental oneness. The human life that has been influenced in multiple ways throughout the life time, fails to overcome the temptations and eventually ends up in misery. A solution to all the misery in the world is to experience the feeling of oneness from within, which uplifts the individual from selfishness to selflessness and eventually the individual feels empathy towards all things. A world with such human beings with the feeling of oneness, will obviously be in harmony and without any miseries.
 
Too Many Cooks? Tracking Internal Labor Market Dynamics in Food Service with Case Studies and Quantitative Data
No full textWe wish to acknowledge Radha Biswas’s participation and invaluable research assistance throughout this project. We also thank the Russell Sage and Rockefeller Foundations for financial support. I
BARON: Base-Station Authentication Through Core Network for Mobility Management in 5G Networks
Full text linkFifth-generation (5G) cellular communication networks are being deployed on applications beyond mobile devices, including vehicular networks and industry automation. Despite their increasing popularity, 5G networks, as defined by the Third Generation Partnership Project (3GPP), have been shown to be vulnerable against fake base station (FBS) attacks. An adversary carrying out an FBS attack emulates a legitimate base station by setting up a rogue base station. This enables the adversary to control the connection of any user equipment that (inadvertently) connects with the rogue base station. Such an adversary can gather sensitive information belonging to the user. While there is a large body of work focused on the development of tools to detect FBSs, the user equipment will continue to remain vulnerable to an FBS attack. In this paper, we propose BARON, a defense methodology to enable user equipment to determine whether a target base station that it is connecting to is legitimate or rogue. BARON accomplishes this by ensuring that the user receives an authentication token from the target base station which can be computed only by a legitimate and trusted entity. As a consequence, receiving such an authentication token from a base station ensures legitimacy of the base station. We evaluate BARON through extensive experiments on the handover process between base stations in 5G networks. Our experimental results show that BARON introduces an overhead of less than 1% during handover completion, which is 10000× lower than the overhead reported by a state-of-the-art method. BARON is also effective in thwarting an FBS attack and quickly recovering connection to a legitimate base station. Cyber Securit
Dirasah Muqaranah ‘an Hukm al-Zawaj Bayna Rudha’a Alban Bunuk al-Laban Fi Manzhur Fuqaha al-Aqdamin wa al-Mu’ashirin
Full text linkThe issue of Breast Milk Bank is a contemporary fiqh issue, and its ruling is not found in classical fiqh. However, classical Moslem scholars have studied the issue of radha in an unusual way known as al-major (breast milk put into the baby's mouth), al-south (breast milk put through the nose), and or putting breast milk into the baby's mouth using bottles and cups. Therefore, the fuqaha differed on the prohibition of marriage because of radha' unusually or indirectly such as radha' from a breast milk bank. After conducting a comparative analysis, the author concludes that the majority of classical scholars from the Hanafi, Maliki, Shafi'i and Hambali madhhabs, and most contemporary fiqh scholars, think that indirect radha', such as radha' from a breast milk bank, makes marriage prohibited. They reason that indirect radha' has the same effect as direct radha' regarding the growth of the baby's flesh and bones. Meanwhile, the Zhahiri school of classical jurisprudence and some contemporary jurisprudence scholars such as Yusuf al-Qardhawi think that indirect radha' such as radha' from a breast milk bank is not called radha'. According to them, radha' is only if the baby suckles directly on the mother's nipple. Hence, they think that radha' from a breast milk bank does not lead to the prohibition of marriage
Top-contacting molecular monolayers using single crystalline Au microplate electrodes
No full textIntegrating molecules in electronic devices to exploit their unique properties requires efficient methods to bring about their electrical contact in large arrays. In this study, chemically synthesized single crystalline Au microplates have been employed as top-contact electrodes in a micro-sandwich device where molecules could be sandwiched between the bottom Au film and the top microplate in capacitor geometry. The device has been tested employing many alkanemono- and -dithiols not only in as-adsorbed conditions but also under dynamic loading. Further, encapsulation using PDMS was carried out which enhanced its stability and shelf-life
Micro- and nanostripes of self-assembled Au nanocrystal superlattices by direct micromolding
Full text linkA simple, inexpensive direct micromolding method for patterning Au nanocrystal superlattices using a polydimethylsiloxane (PDMS) stamp has been developed. The method involves in situ synthesis of Au(I) dodecanethiolate and its decomposition leading to Au nanocrystals in the microchannels of the stamp which order themselves to form patterned superlattice stripes, in conformity with the stamp geometry. Owing to its insolubility in common solvents, the dodecanethiolate was made by reacting Au(PPh3)Cl and dodecanethiol in situ inside the microchannels, by injecting first the former solution in toluene at room temperature followed by the thiol solution at 120 °C. Annealing the reaction mixture at 250 °C, resulted in formation of nanocrystals (with a mean diameter of 7.5 nm) and hexagonal ordering. By using an external pressure while molding, parallel stripes with sub-100 nm widths were obtained. The choice of parameters such as injection temperature of the thiol and concentrations is shown to be important if an ordered superlattice is to be obtained. In addition, these parameters can be varied as a means to control the nanocrystal size
Fast water flow through graphene nanocapillaries: A continuum model approach involving the microscopic structure of confined water
No full textWater inside a nanocapillary becomes ordered, resulting in unconventional behavior. A profound enhancement of water flow inside nanometer thin capillaries made of graphene has been observed [Radha et al., Nature (London) 538, 222 (2016)]. Here, we explain this enhancement as due to the large density and the extraordinary viscosity of water inside the graphene nanocapillaries. Using the Hagen-Poiseuille theory with slippage-boundary condition and incorporating disjoining pressure term in combination with results from molecular dynamics simulations, we present an analytical theory that elucidates the origin of the enhancement of water flow inside hydrophobic nanocapillaries. Our work reveals a distinctive dependence of water flow in a nanocapillary on the structural properties of nanoconfined water in agreement with experiment, which opens a new avenue in nanofluidics
A modified micromolding method for sub-100-nm direct patterning of Pd nanowires
No full textAn unconventional modification of a poly(dimethylsiloxane) stamp hosting microchannels leads to the formation of nanochannels entrapping a precursor, which metallizes into sub-100-nm Pd nanowires under the molding conditions (see image). This is a single-step direct-patterning technique termed nanoentrapment molding
Direct Micromolding of Bimetals and Transparent Conducting Oxide using Metal-TOABr complexes as Single Source Precursors
No full textPatterning of metals, alloys and conducting oxides is vitally important for many industrial applications pertaining to many technological devices. In this report, we have used metal anion alkyl ammonium complex (M-TOABr) as a single-source precursor to obtain thin films as well as micro (µ)-patterns of bimetals (Au-Pd, Au-Pt, Au-Cu, Pt-Pd) and conducting oxide (ITO). This complex can be easily filled inside the soft mold and converted to the desired material in a single step known as direct patterning. As-obtained µ-pattern comprises a well-connected network of nanocrystals giving rise to metallic conductivity. These periodically aligned bimetals and ITO microwires could effectively serve as electrodes as well as an electrocatalyst with the prudence of providing passage for light transmission for many functional photoelectrochemical devices. In addition, the electrochemical stability of the bimetallic film was examined by fabricating a supercapacitor device and by studying its performance
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