The syntheses of palmitic acids and a nonadecane are reported with CF2 groups located 1,3 or 1,4 to each other along the aliphatic chain. Specifically 8,8,10,10- and 8,8,11,11-tetrafluorohexadecanoic acids (6b and 6c) are prepared as well as the singly modified analogue 8,8-difluorohexadecanoic acid (6a). Also 8,8,11,11-tetrafluorononadecane (27) is prepared as a pure hydrocarbon containing a 1...

We introduce a novel amortised resource analysis couched in type-and-effect system. Our is formulated terms of the physicist's method analysis, and potential-based. The type system makes use logarithmic potential functions first such to exhibit *logarithmic complexity*. With our approach we target automated self-adjusting data structures, like splay trees, which so far have only manually been a...

Latar Belakang: Kelincahan didefinisikan sebagai gerakan seluruh tubuh yang cepat dengan perubahan kecepatan atau arah respons terhadap stimulus. Ini adalah kemampuan motorik penting dalam olahraga melibatkan multi arah. Metode: Penelitian ini penelitian eksperimental menggunakan desain quasi eksperimen metode pre test-post test two group design. bertujuan untuk mengetahui perbedaan efektivitas...

The stability of small fractal graphene models with two different symmetries and Fe atoms at their mixed edges is addressed by density functional theory (DFT) calculations. Four kinds edge configurations atom localizations are determined depending on the model. have configuration, zig-zag “intra-zig-zag” in symmetrical structures armchair type architectures rotational symmetry. symmetry exhibit...

By computing repeated pullbacks, we are able to compute zig-zag persistent homology in a way that easily parallelizes. In this paper, we demonstrate this algorithm together with its underlying mathematical foundation. We can parallelize and scale the computation scheme.

This paper presents a static analysis of laminated composite doubly-curved shells using refined kinematic models with polynomial and non-polynomial functions recently introduced in the literature. To be specific, Maclaurin, trigonometric, exponential and zig-zag functions are employed. The employed refined models are based on the equivalent single layer theories. A simply supported shell is sub...

Double hexagonal chains” can be considered as benzenoids constructed by successive fusions of successive naphthalenes along a zig-zag sequence of triples of edges as appear on opposite sides of each naphthalene unit. In this paper, we discuss the numbers of k-matchings and k-independent sets of double hexagonal chains, as well as Hosoya indices and Merrifield–Simmons indices, and obtain some ex...

Digital watermarking is an important technology in today’s world for protecting multimedia content from illegal copying of data. It is a process of concealing information. The main purpose of digital watermarking provided more robustness and integrity against geometrical attacks. In this paper, various digital watermarking techniques have been discussed and identified the best technique by comp...