Multi-objective optimization for the geometry of trapezoidal corrugated morphing skins

Morphing concepts have great importance for the design of future aircraft as they provide the opportunity for the aircraft to adapt their shape in flight so as to always match the optimal configuration. This enables the aircraft to have a better performance, such as reducing fuel consumption, toxic emissions and noise pollution or increasing the maneuverability of the aircraft. However the requirements of morphing aircraft are conflicting from the structural perspective. For instance the design of a morphing skin is a key issue since it must be stiff to withstand the aerodynamic loads, but flexible to enable the large shape changes. Corrugated sheets have remarkable anisotropic characteristics. As a candidate skin for a morphing wing, they are stiff to withstand the aerodynamic loads and flexible to enable the morphing deformations. This work presents novel insights into the multi-objective optimization of a trapezoidal corrugated core with elastomer coating. The geometric parameters of the coated composite corrugated panels are optimized to minimize the in-plane stiffness and the weight of the skin and to maximize the flexural out-of-plane stiffness of the skin. These objective functions were calculated by use of an equivalent finite element code. The gradient-based aggregate method is selected to solve the optimization problem and is validated by comparing to the GA multi-objective optimization technique. The trend of the optimized objectives and parameters are discussed in detail; for example the optimum corrugation often has the maximum corrugation height. The obtained results provide important insights into the design of morphing corrugated skins

Ovarian Dynamic in Ongole Grade Cattle After GnRH Injection in Ovsynch Protocol Based on Progesterone Device

PO cattle have weaknesses to show clear estrus signs which cause difficulty in artificial insemination implementation. The present study was designed to obtain ovarian dynamic as effect of GnRH injection in ovsynch protocol based on progesterone intravaginal device. Heifers (18) and cows (n= 12) were allocated to one of three groups. Cuemate-PGF2α (CP) group inserted with a Cuemate on day 0-7 and injected with prostaglandin on day 7. Cuemate-PGF2α-GnRH (CPG) group was treated as CP group with the addition of GnRH injection on day 9. GnRH-Cuemate-PGF2α-GnRH (GCPG) group was treated as CPG group with addition of GnRH injection on day 0. Ultrasonography was performed on days 0-3, day 7 until ovulation and 7 days after ovulation. Percentage of ovulation synchronization increased significantly (P<0.01) between CP, CPG, and GCPG, respectively, both in heifers (16%, 50%, and 85%, respectively) and cows (0%, 60%, and 100%, respectively), on day 11. Preovulatory follicle diameters between CP, CPG, and GCPG treatments were not different significantly both in heifers (11.9±0.5, 11.9±0.5, and 12.1±0.6 mm, respectively) and cows (11.7±0.4, 11.8±0.7, and 11.1±0.6 mm, respectively). This study concluded that GCPG protocol increased the synchrony of ovulation rate both in cows and heifers, without affecting the follicle preovulatory and CL diameters

Fluid - Structure - Soil Interaction of Cylindrical Liquid Storage Tank Subjected to Horizontal Earthquake Loading

Shallow founded tanks are strategic structures used to store a variety of kind of liquids. The fluid develops hydrodynamic effect on solid domain of container during an earthquake. This paper provides the theoretical background for numerical model on seismic response of fluid-structure-soil interaction. The Finite Element Method (FEM) was used for seismic response of shallow founded cylindrical container. The Fluid- Structure-Soil interaction of shallow founded tank was analysed according to theories of I. Limit States - the ultimate limit state (ULS) and II. Limit States - the serviceability limit state (SLS) pursuant to EN 1997-1. Summary of the results: the maximum rotation of foundation is growing with the reduction of the stiffness of the subsoil and the vertical and horizontal bearing capacity depends on the strength properties of the subsoil

International Criminal Law Policy on the Issue of Human Trafficking Crimes

The objective of study was to analyze the International Criminal Law Policy on the Issue of Human Trafficking Crimes. The analysis was focused on policy of International Law to human trafficking crime. The study is compiled with normative juridical research method with the approach of legislation, the conceptual approach and the approach of international law. Based on the survey results was revealed that basically the concept and criteria of International Criminal Law Policy on the Issue of Human Trafficking Crimes. Human Trafficking is a transnational crime or at least several countries, thus becoming the International Criminal Human Trafficking. Therefore it requires the commitment of all states to tackle the human trafficking. Such a commitment must be realized in various forms, including: international agreements, protocols, etc., on the prevention of human trafficking. Keywords: International Law, Human Trafficking, Transnational Organized Crime

The Pros and Cons of the Death Penalty for the Drug Abuse in Indonesia

The last few years of Indonesian society preoccupied with the debate the pros and cons of the death penalty for drug traffickers. The debate arises, after President Jokowi rejected clemency filed several death row inmates, including drug dealers. In this study, the observed variables are: the death penalty for drug abuse. Here, researchers are more focused on drug eradication efforts that have been undertaken by the government, and, people's perception of the death penalty for drug abuse.l research. The results of this study revealed that the death penalty is the punishment implemented by depriving the soul of someone who violates the provisions of the law.in other words, Pros and cons application of the death penalty in Indonesia Criminal broadly conical into two major parts; (1) That the death penalty does not violate human rights because human rights offender has violated the human rights of victims and society. (2) The death penalty violates human rights because of the revocation of the right to life someone who is actually right was very much appreciated and no one is allowed to pull it out. Keywords: Death Penalty, Drug Abuse, Human Rights

Saudi EFL students’ perspectives on the influence of informal activities in learning English

This research arose from my own experiences in trying to learn English as a citizen of Saudi Arabia. I studied English as a Foreign Language (EFL) for six years in middle and high school. When I went to university, English was used in the curriculum as both subject and medium of instruction. This was when I realized that after six years of studying English, I had a weak grasp of the English language when it came to speaking, listening, writing, and reading. However, once I began to use English in informal contexts, I found that my English language skills were surprisingly getting better each day. While there has been considerable scholarly interest in informal learning globally, there has been only limited research into learning English through informal activities in a Saudi Arabian context. The objective of this study is to enhance our understanding of the influence of informal English language activities on English learning by EFL learners in a Saudi Arabian higher education context. The study employs a qualitative multiple case study approach to understand the ways in which 16 EFL students from different levels and subject streams at the Western University (pseudonym) in Saudi Arabia engaged in informal activities to learn English and/or to improve their English skills. After recruitment of participants, three stages of interviews were conducted individually with each participant. The findings provide a useful window into the participants’ perspectives on the influence of informal activities on their English learning. Generally speaking, considerable differences were identified between learning English formally in class and using it informally during their daily lives. The participants believed that the informal activities had a critical positive impact on their English learning process and influenced their engagement with the language in ways that formal education did not. Overall, the findings of the thesis suggest that the learning of English should not be limited to the classroom, as the learning process can take place effectively at any time and place without being bound to specific formal instruction. Informal English language learning activities thus deserve to be considered from an EFL learners’ perspective specifically, and from that of educators and education authorities in general. This thesis also offers a number of recommendations and implications for future research

The Logic Game, Fallacy in Selected Poems by John Donne

تهدف الدراسة الى تحليل ثلاث قصائد اغراء  للشاعر جون دون  وهي "البرغوث" و "الحب المقيد " و " الى خليلته في الفراش" يستخدم فيها المغالطة كتقنية للأغراء . ويحاول الشاعر في هذه القصائد ان يتلاعب بالمنطق في حواراته الذكية مع النساء ومن خلال الاعتقادات الزائفة او المغالطات لغرض اقناعهن بشرعية وقدسية العلاقة الحميمة سواء كانت قبل الزواج او عن طريق الخيانة الزوجية. ويعمد الشاعر الى استعمال مغالطات قوية مع النساء اللواتي يظهرن في قصائده الثلاث  متحفظات ورافضات, بهدف اقناعهن بالتسليم لرغبات الشاعر الجنسيةThe aim of this paper is to analyze three seduction poems by John Donne regarding his use of fallacy as a technique for seduction. These poems are “The Flea”, “Confined Love” and “To His Mistress Going to Bed”. Donne tries to manipulate reasoning in the arguments with the women in those poems cleverly through false beliefs i.e., fallacies, to convince them of the legitimacy and sanctity of sexual intercourse, whether it is premarital or adultery. He deploys strong fallacious arguments with the women, who are presented as cautious or dismissive, in all three poems to achieve his aim of convincing those women to voluntarily agree to his sexual desire

Entropic Energy-Time Uncertainty Relation

Energy-time uncertainty plays an important role in quantum foundations and technologies, and it was even discussed by the founders of quantum mechanics. However, standard approaches (e.g., Robertson's uncertainty relation) do not apply to energy-time uncertainty because, in general, there is no Hermitian operator associated with time. Following previous approaches, we quantify time uncertainty by how well one can read off the time from a quantum clock. We then use entropy to quantify the information-theoretic distinguishability of the various time states of the clock. Our main result is an entropic energy-time uncertainty relation for general time-independent Hamiltonians, stated for both the discrete-time and continuous-time cases. Our uncertainty relation is strong, in the sense that it allows for a quantum memory to help reduce the uncertainty, and this formulation leads us to reinterpret it as a bound on the relative entropy of asymmetry. Due to the operational relevance of entropy, we anticipate that our uncertainty relation will have information-processing applications.Comment: 6 + 9 pages, 2 figure