Finite Groups Having Nonnormal T.I. Subgroups

In the present paper, the structure of a finite group $G$ having a nonnormal T.I. subgroup $H$ which is also a Hall $\pi$-subgroup is studied. As a generalization of a result due to Gow, we prove that $H$ is a Frobenius complement whenever $G$ is $\pi$-separable. This is achieved by obtaining the fact that Hall T.I. subgroups are conjugate in a finite group. We also prove two theorems about normal complements one of which generalizes a classical result of Frobenius

Perencanaan Komunikasi Pemerintah Kota Payakumbuh dalam Mempertahankan Kota Sehatyang Berkelanjutan

Environmental pollution caused by natural disasters and also human activities, resulting in the decline in environmental quality both in the city and in the village. Environmental pollution that occurs can not be burdened on one side only, but there must be collaboration between society and also government. One of Payakumbuh government's efforts in dealing with pollution that occurred in Payakumbuh City, namely by creating a healthy city program called Payakumbuh Sustainable Healthy City. This study aims to determine the process of communication planning in making Payakumbuh Healthy City program.This research uses descriptive qualitative research type by using Assifi and French communication planning model. The subjects of the study consisted of four persons involved in the making of selected programs using purposive techniques. This study uses data collection techniques through in-depth interviews, observation, and documentation. To achieve the validity of data in this study, the authors use triangulation.The results showed that first, the targeted audience in this healthy city program is the whole Payakumbuh community that is in the process of building a clean attitude. Second, the message delivered in this healthy city program is a message that is informative and also persuasive where the message invites the public to keep the cleanliness of the city. Third, the media used in the dissemination of the message is by way of communication in interpersonal, group communication and also media communication. Fourth, evaluation is done by determining the monitoring point to be evaluated, view the field condition, see the program implementation. After that, the government summoned the OPD through the Mayor as the person in charge, then the Mayor will define the deficiency to OPD and OPD here who will be tasked to meet the deficiencies that occurred in the field

Tangan sebagai Metafora Realitas Kehidupan dalam Karya Seni Rupa

Penciptaan karya ini adalah untuk melihat realitas hari ini dengan menggunakan idiom tubuh. Tubuh pada bagian tangan dipilih sebagai daya ungkap dan inspirasi. Karya memvisualisasikan tangan sebagai metafora dalam realitas kehidupan saat ini. Metode yang digunakan adalah metode penciptaan seni berbasis praktik (Practice Based Research). Proses ini dibagi dua yaitu: 1) Practice dan 2) Study Literatur. Pemilihan metode ini sangat sesuai dengan yang penulis visualkan karena di dalamnya terdapat in and through atau pengalaman mengalami. Proses penciptaan mengombinasikan karya lukis dan karya seni rupa lainnya. Karya yang dibuat mewakili tema yaitu tentang fenomena realitas hari ini, mulai dari masalah sosial hingga politik, dan fenomena mutakhir. Semua bentuk visual karya menggunakan idiom tangan sebagai metafora. Tangan menjadi makna kritik dan pesan moral atas realitas hari ini. Hands as a Metaphor of the Reality of Life in Fine Art ABSTRACT This work of art aims to examine contemporary reality using the body idiom. The hand part of the body is selected as the power of expression and inspiration. The painting visualizes hands as metaphors in today’s reality. Practiced-based research is used as the primary method in which practice and literature study are the methods used in the process of creation. The chosen method is under the author’s visualization since it contains “in and through” of the author’s immersion in the experience. The production process combines paintings and other works of art. The created art represents the theme of reality in present phenomena ranging from social and political issues to the latest phenomena. All visual forms of creation utilize hand idioms as metaphors because hands manifest the meaning of criticism and moral messages toward modern reality

Dynamically tunable phase shifter with commercial graphene nanoplatelets

In the microwave frequency band the conductivity of graphene can be varied to design a number of tunable components. A tunable phase shifter based on commercial graphene nanoplatelets is introduced. The proposed configuration consists of a microstrip line with two stubs connected with a taper. On each side of the stubs there is a gap, short circuited through a via, where the commercial graphene nanoplatelets are drop casted. By applying a DC bias voltage that alters the graphene resistance the phase of the transmitted signal through the microstrip line can be varied. In order to maximize the phase shift of the transmitted signal and minimize the insertion loss, the length of the taper and the stubs are optimized by the help of circuit model and full-wave simulations. A prototype working at 4GHz is fabricated and measured. A phase variation of 33 degrees is acquired with an amplitude variation of less than 0.4dB

Evaluation of Geogrid-Reinforced Flexible Pavement System Based on Soft Subgrade Soils Under Cyclic Loading

Geogrids have been successfully used to improve soft subgrade and reinforce weak base course by providing lateral confinement. However, Soft saturated fine-grained subgrade soils are distinguished by their high compressibility and low undrained shear strength. Moreover, when the stress is applied on the soft foundation soil resulting from repeated traffic load causing the soil particles to press together and the volume of the soil will decrease resulting in settlements. While applying stress on saturated soft foundation soil due to the increase of the water stress is squeezed out of the soft subsoil causing settlements. In this regard, geogrid reinforcement is the soil improvement technique which proposed to be used in this study to provide a solution for this problem. Using these techniques has been contributing to enhancing the pavement performance systems including the increase of the pavement service life. To simulate the above-mentioned situation, the experimental work included two models: raw materials model and geogrid model. A laboratory model tests are carried out to simulate the asphalt pavement layers and design cycling load system equivalent to the standard single axle load, which were prepared throughout a design and assembling of steel Container model. In this study, development of three-dimensional finite element models for flexible pavement system based on the numerical study has been carried out throughout the application of elastic model using ABAQUS software ver.6.14.4 to simulate and analyze the relationship between the number of applied load cycles and permanent displacement for the pavement layers of two model. The test results that recorded at 1600 cycle load, showed that the permanent displacement at the surface of pavement for improved models and compared with the raw material model has seen decreases by (7.75%). Also, by using the reinforced model is found to be more effective to resist vertical strain under cyclic load at the surface of subgrade soil if compared with the raw material model. Moreover. The results of ABAQUS program are very close to results of laboratory tests. Keywords: Geo-Grid Reinforcement, Soft Subgrade, ABAQUS