In Situ Investigation of Deformation Mechanisms in Magnesium-Based Metal Matrix Composites

Gergely Farkas,최희만,Kristián Máthis,Zoltán Száraz,노윤숙,Zuzanka Trojanová,Peter Minárik 대한금속·재료학회 2015 METALS AND MATERIALS International Vol.21 No.4

We studied the effect of short fibers on the mechanical properties of a magnesium alloy. In particular, deformation mechanisms in a Mg-Al-Sr alloy reinforced with short alumina fibers were studied in situ using neutron diffraction and acoustic emission methods. The fibers’ plane orientation with respect to the loading axis was found to be a key parameter, which influences the acting deformation processes, such as twinning or dislocation slip. Furthermore, the twinning activity was much more significant in samples with parallel fiber plane orientation, which was confirmed by both acoustic emission and electron backscattering diffraction results. Neutron diffraction was also used to assist in analyzing the acoustic emission and electron backscattering diffraction results. The simultaneous application of the two in situ methods, neutron diffraction and acoustic emission, was found to be beneficial for obtaining complementary datasets about the twinning and dislocation slip in the magnesium alloys and composites used in this study.

Materials to Study Biology in 4D: Photoadaptable Hydrogels for the Growth and in situ Shape Modulation of Intestinal Organoids

Kristi Anseth,F. Max Yavitt,Michael Blatchley 한국고분자학회 2023 한국고분자학회 학술대회 연구논문 초록집 Vol.48 No.1

Hospital Preparedness for Disaster : 재해준비체계-의료기관 중심으로

Kristi Koenig 한국재난정보학회 2007 한국재난정보학회 학술대회 Vol.2007 No.1

Financial Therapy : A New Area of Research, Practice, & Collaboration

Kristy L. Archuleta 한국재무학회 2012 한국재무학회 학술대회 Vol.2012 No.05

[BOOK REVIEW] Transformation of the intimate and the public in Asian modernity

Kristi POERWANDARI 이화여자대학교 아시아여성학센터 2016 Asian Journal of Women's Studies(AJWS) Vol.22 No.2

Women's Studies in Asia

Kristi POERWANDARI 이화여자대학교 아시아여성학센터 2000 이화여자대학교 아시아여성학센터 학술대회자료집 Vol.2000 No.10

Does it Matter Who Makes the Financial Decisions? An Exploratory Study of Married Couples’ Financial Decision-Making and Relationship Satisfaction

Kristy L. Archuleta,John E. Grable 한국FP학회 2012 Financial Planning Review Vol.5 No.4

재무적 의사결정은 부부관계에 대한 만족도와 관계가 있다. 본 연구는 상징적 상호작용이론에 근거하여 재무의사결정의 관여도와 재무만족도가 부부관계 만족도와 어떤 관련이 있는지 살펴보았다. 본 연구의 결과 부부공동의사결정과 단독결정여부는 재무의사결정과정에서의 관여도에 대해 그들이 느끼는 만족도만큼 중요함을 보여주었다. 본 연구의 결과에 따른 시사점은 부부와 그들의 재무적 문제를 다루는 교육자, 재무치료사 및 관련 전문가와 연구자에게 유용하게 이용될 수 있다. How couples make financial decisions is known to be associated with relationships satisfaction. The current study uses symbolic interaction theory to examine how a person’s involvement in financial decision-making and their satisfaction is related to relationship satisfaction. The results from this study indicate that whether couples make decisions jointly or not is nearly as important as the level of satisfaction they have with their involvement in the financial decision-making process. Findings suggest implications for educators, financial therapists, and other professionals working with couples and their financial issues, as well as highlighting opportunities for further research in this area.

A Case Study on the Business Model of Chloe

( Kristi Storemark ),( Jonas Hoffmann ) 한국마케팅과학회 2012 Journal of Global Fashion Marketing Vol.3 No.1

Luxury fashion companies are today part of a dynamic and fast growing industry. The competition of international market shares is tough, and only the fittest survive. There are three large luxury groups in the world: LVMH, PPR and Richemont. Chloe is a French luxury fashion company belonging to Richemont, since being acquired by the group in 1985. Chloe was founded in 1952 by a Parisian claiming that the contemporary fashion was too stiff and formal. Her name was Gaby Aghion and she opted for changes and started to design garments which she called "luxury ready-to-wear". This became a huge success in the market and other fashion houses followed her. The house reached its first peak in the 1970s with Karl Lagerfeld at the designer helm and later on in the 2000s with Phoebe Philo as the chief designer. A business model is defined by three basic components; value creation, value architecture and revenue model. Osterwalder and Pigneur (2009) extend these three components into a nine point business model canvas. The value creation deals with the value proposition as well as the customer segments of the company. The value architecture explains customer relationships, distribution channels, key activities, key resources and key partners. Finally, the revenue model is based on the cost structure and the revenue streams of the company. For a company, it is highly important to detect its own business model in order to know where improvements are needed to improve growth and profitability. The methodology conducted to detect the business model of Chloe in this study is characterized by a qualitative research strategy. Both primary and secondary sources were utilized in the search for information. Regarding primary sources, the first author of the paper conducted in-depth interviews with sales staff and was able to observe the daily routine first-hand while working as an intern in one of Chloe`s boutiques. This article is therefore built on an interactive case study. The value proposition Chloe offers its clients over and above the actual products of ready-to-wear, bags, shoes and accessories, is a lifestyle recognized by elegance, comfort and luxury in a clean and simple manner. The customer of Chloe is the same worldwide: very feminine, well-traveled, central, iconoclastic and adventurous. The age group is different from country to country, but the customer usually belongs to an economically wealthy group of its society. Chloe also counts a number of celebrities among its clients. Key resources are divided into physical, intellectual, human and financial resources. Physical resources include materials utilized to manufacture the products, alongside design studios, showrooms, stores and equipment. Intellectual resources are the company`s brand patents and copyrights. Human resources are the individuals who make up the work force of the company. There is an important emphasis on sales staff training. Financial resources revolve around the support given by parent company Richemont. The study also comments on the turnover of creative directors at Chloe, and the importance of choosing the right person for the job. Finally, pioneer clients who become company ambassadors, for example, Kirsten Dunst, are mentioned as a resource in the company value constellation. Regarding distribution channels, Chloe has one main channel; retail. This include Chloe`s own boutiques, as well as multi-brand stores such as department stores, shop-in-shop and point-of-sale counters. Chloe is represented in around one hundred and twenty stores worldwide, forty of which are company owned and twenty are franchise units. The stores are mostly represented in Asia where Japan, South-Korea, China and the Middle-East are strong markets. The US and Europe are also large markets. There are in total seven online stores which offer Chloe products. Chloe puts a lot of effort in winning market shares in China, and has opened a Chinese blog/webpage (jesuischloe.com.) for its Chinese clients. The key activities Chloe performs are design, manufacturing, marketing, distribution and sales. Export and import are also part of the activities, given the company`s global presence. Key partners are Lamy, who provides the company`s sunglasses, Iris who provides the shoes and Coty Prestige who has bought the beauty license of the company and is responsible for providing the Chloe perfumes. The customer relationship is naturally strongest between the sales staff and the clients. Returning clients are registered in a client database and they receive benefits such as invitations for events, discounts, pre-sales and so on. The company also holds a list of VIP-customers, who receive significant discounts on products. Regarding the revenue model, Chloe has two main streams of income; retail and wholesale. The retail is divided into direct retail, in other words online sales, which count for forty percent of the retail, and the normal retail in stores which counts for sixty percent of the retail. It is uncertain how much revenue the wholesale counts for percent wise compared to retail, but it is estimated to be a figure around three hundred million dollars. Main cost sources are manufacture, branding and retail. As a conclusion, this study has indicated that the business model of Chloe is highly efficient. There is evidence for its integration from corporate to local level with a strong communication between the various departments of the company. Yet new challenges lie ahead for Chloe. Massive growth markets such as Brazil and India are yet to be captured, and with a new creative director, Claire Waight Keller, time will show how well new collections and competition of market shares succeed. However, as Chloe testifies with a great resilience in its brand equity, any new challenges are expected to be met with carefully planed strategies.

Outcomes of Elective Endovascular Aneurysmal Repair for Abdominal Aortic Aneurysms in Jordan

Kristi E. Janho,Mohammed A. Rashaideh,Jan Shishani,Muhannad Jalokh,Hazem Haboub 대한혈관외과학회 2019 Vascular Specialist International Vol.35 No.4

Purpose: The outcomes of endovascular aneurysmal repair (EVAR) for infrarenal abdominal aortic aneurysms (AAAs) in the Middle East have rarely been reported. We analyzed the outcomes of EVAR in a Jordanian population. Materials and Methods: We conducted a retrospective review of the medical records of patients with infrarenal AAA who were treated with elective EVAR between January 2004 and January 2017 at a single center in Jordan. Patient characteristics, anatomical characteristics, procedural details, and early and late postoperative outcomes were analyzed. Results: A total of 288 patients (mean age, 70 years; 77.8% males) underwent EVAR for infrarenal AAA (median aneurysm size, 64 mm). Bifurcated endografts were used in 265 patients, and aorto-uni-iliac devices were used in 22 patients. Successful endograft deployment was achieved in all patients with no open conversion. Early complications included localized groin hematoma in 15, femoral artery dissection in 4, wound infection in 3, and seroma in 3 patients. With a mean follow-up of 60 months, 50 endoleaks were detected, including 9 type I, 38 type II, and 3 type III. Seven patients had unilateral graft limb occlusion. The 30-day mortality was 1.7%, and long-term mortality was 7.0%, mostly due to non-AAArelated causes. Conclusion: EVAR was safely performed in Jordanian patients with minimal complications. However, long-term surveillance is important due to the risk of endoleaks and consequent intervention.

Spatiotemporal Mapping Reveals Regional Gastrointestinal Dysfunction in mdx Dystrophic Mice Ameliorated by Oral L-arginine Supplementation

( Kristy Swiderski ),( Rebecka Bindon ),( Jennifer Trieu ),( Timur Naim ),( Shana Schokman ),( Mathusi Swaminathan ),( Anita J L Leembruggen ),( Elisa L Hill-yardin ),( Rene Koopman ),( Joel C Bornste 대한소화기 기능성질환·운동학회 2020 Journal of Neurogastroenterology and Motility (JNM Vol.26 No.1

Background/Aims Patients with Duchenne muscular dystrophy exhibit significant, ongoing impairments in gastrointestinal (GI) function likely resulting from dysregulated nitric oxide production. Compounds increasing neuronal nitric oxide synthase expression and/or activity could improve GI dysfunction and enhance quality of life for dystrophic patients. We used video imaging and spatiotemporal mapping to identify GI dysfunction in mdx dystrophic mice and determine whether dietary intervention to enhance nitric oxide could alleviate aberrant colonic activity in muscular dystrophy. Methods Four-week-old male C57BL/10 and mdx mice received a specialized diet either with no supplementation (control) or supplemented (1 g/kg/day) with L-alanine, L-arginine, or L-citrulline for 8 weeks. At the conclusion of treatment, mice were sacrificed by cervical dislocation and colon motility examined by spatiotemporal (ST) mapping ex vivo. Results ST mapping identified increased contraction number in the mid and distal colon of mdx mice on control and L-alanine supplemented diets relative to C57BL/10 mice (P < 0.05). Administration of either L-arginine or L-citrulline attenuated contraction number in distal colons of mdx mice relative to C57BL/10 mice. Conclusions GI dysfunction in Duchenne muscular dystrophy has been sadly neglected as an issue affecting quality of life. ST mapping identified regional GI dysfunction in the mdx dystrophic mouse. Dietary interventions to increase nitric oxide signaling in the GI tract reduced the number of colonic contractions and alleviated colonic constriction at rest. These findings in mdx mice reveal that L-arginine can improve colonic motility and has potential therapeutic relevance for alleviating GI discomfort, improving clinical care, and enhancing quality of life in Duchenne muscular dystrophy.