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Designing Uniform Computer Sequential Experiments with Mixture Levels Using Lee discrepancy

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Journal of Systems Science & Complexity 2019年第2期32卷 681-708页

作者： ELSAWAH A M Department of Mathematics Faculty of Science Zagazig University Division of Science and Technology BNU-HKBU United International College

Computer experiments are constructed to simulate the behavior of complex physical systems. Uniform designs have good performance in computer experiments from several aspects. In practical use, the experimenter needs to choose a small size uniform design at the beginning of an experiment due to a limit of time, budget, resources, and so on, and later conduct a follow up experiment to obtain precious information about the system, that is, a sequential experiment. The Lee distance has been widely used in coding theory and its corresponding discrepancy is an important measure for constructing uniform designs. This paper proves that all the follow up designs of a uniform design are uniform and at least two of them can be used as optimal follow up experimental designs. Thus, it is not necessary that the union of any two uniform designs yields a uniform sequential design. Therefore, this article presents a theoretical justification for choosing the best follow up design of a uniform design to construct a uniform sequential design that involves a mixture of ω≥ 1 factors with β_k ≥ 2, 1 ≤ k ≤ωlevels. For illustration of the usage of the proposed results, a closer look is given at using these results for the most extensively used six particular cases, three symmetric and three asymmetric designs, which are often met in practice.

关键词： Computer experiment Lee discrepancy Lee distance lower bound sequential design uniform design

Diagnostic discrepancy between colposcopy and vaginoscopy:A case report

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World Journal of Clinical Cases 2021年第21期9卷 5943-5947页

作者： Qing Li Hong-Wei Zhang Long Sui Ke-Qin Hua Diagnosis and Treatment Center of Cervical Disease OBG Hospital of Fudan UniversityShanghai 200000China Department of Gynecology Obstetrics and Gyncology Hospital of Fudan UniversityShanghai 200090China

BACKGROUND Colposcopy currently plays a vital role in the diagnosis and treatment of lower genital *** and biopsy are two key steps in *** the whole transformation zone or all lesions cannot be observed,we judge colposcopy as *** colposcopic examination may lead to the misdiagnosis of more severe *** combination of colposcopy and vaginoscopy may contribute to accurate diagnosis and clinical *** SUMMARY Here,we introduce a case of posthysterectomy deep vaginal apex not fully exposed by colposcopy,and the biopsy result was a vaginal precancerous *** adopted vaginoscopy to extend the observed area and expose the lesion thoroughly,and the biopsy result was vaginal squamous *** The patient received a precise diagnosis and early surgery due to the combination of colposcopy and vaginoscopy.

关键词： Colposcopy Yaginoscopy Cervicoscopy Hysteroscopy Unsatisfactory discrepancy Case report

A Method for Exact Calculation of the discrepancy of Low-Dimensional Finite Point Sets(II)

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Acta Mathematica Sinica,English Series 1995年第4期11卷 422-434页

作者： Yaochen Zhu Institute of Applied Mathematics Academia Sinica Beijing China

In the present paper a general formula for exact calculation of the discrepancy of an arbitrary finite point set of dimension d≥2 is explicitly given only in terms of the components of the points.

关键词： discrepancy Finite point set Exact calculation

The discrepancy of Neurological Diseases between China and Western Countries in Recent Two Decades

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Chinese Medical Journal 2018年第8期131卷 886-891页

作者： Jun Ni Fei Han Jing Yuan Han Wang Dong-Chao Shen Yan Xu Li-Ying Cui Department of Neurology Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China Neuroscience Center Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China

INTRODUCTION Neurological diseases are characterized by high frequency of disability and mortality with pathogenesis largely unknown. Genetic, refractory, and rare diseases account tbr a large proportion of neurological diseases： sympathetically, limited curable treatments are available. Hundreds of millions of people worldwide are affected by neurological disorders. The diagnosis and treatment of neurological disorders have made significant progress in recent years, especially in the past two decades with the rapid development of technology.

关键词： discrepancy Progression Neurological Diseases China Western

The Current Concepts of Orthodontic discrepancy Stability

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Open Journal of Stomatology 2014年第4期4卷 184-196页

作者： Maen Mahfouz Department of Orthodontics and Pediatric Dentistry Arab American University Jenin Palestine

There is a wide range of opinions on the best time to start orthodontic treatment but the vast majority is carried out on children who have lost all their baby (deciduous) teeth and have most of their adult teeth (except for wisdom teeth) present in the mouth. Stability of orthodontic discrepancy is one of the most important factors that determine when start orthodontic treatment of the dentofacial deformaties. This paper threw light on stability of orthodontic discrepancy, its classification, comparing between stable versus unstable orthodontic discrepancy and its impact on the timing of orthodontic treatment.

关键词： Stability Orthodontic discrepancy

Marginal discrepancy and microleakage in crown-copings fabricated by three CAD/CAM systems: An <i>in vitro</i>study

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Open Journal of Stomatology 2012年第3期2卷 163-169页

作者： Marcela Herrera Alfonso Catalán Maritza Flores Alejandra Martínez Department of Oral Pathology Faculty of Dentistry University of Concepción Concepción Chile Department of Public Health School of Medicine University of Concepción Concepción Chile Department of Restorative Dentistry Faculty of Dentistry University of Concepción Concepción Chile

The purpose of this study was to evaluate and compare the microleakage and marginal discrepancy of ceramic crown-copings fabricated by three different CAD/CAM systems. Material and methods: Thirty extracted premolars were prepared for complete all-ceramic crowns with: total convergence 10-degree, 2 mm occlusal reduction, 4.5 mm height, 1.3 mm circular reduction and chamfer marginal preparation. They were divided into three groups and each group (n = 10) received a ceramic crown-coping fabricated by one of three CAD/CAM systems: Procera, KaVo Everest and Cerec inLab. The copings were cemented with Panavia F 2.0. After thermal cycling, the teeth were immersed in 2% basic fuchsine dye for 24 hours. Microleakage was scored using a five-point scale and evaluated under a stereomicroscope at ×18. Marginal discrepancies were assessed with scanning electronic microscope at ×150, with measurements at 50 different points. Data were subjected to a chisquare test, Kolmogorov-Smirnov test and using Rho Spearman’s correlation test (P 0.05). No significant differences were found in marginal discrepancies for the Procera (62.58 ± 8.98 μm) and KaVo Everest systems (65.54 ± 18.56 μm), (P = 0.941). Significant differences were found for Cerec inLab (132.18 ± 27.75 μm) compared with Procera and KaVo Everest (P = 0.0001). No correlation between the marginal discrepancies and microleakage for the three CAD/CAM crown-copings systems. Conclusions: Cerec inLab CAD/CAM crown-copings showed significantly higher values for microleakage and marginal discrepancy in comparison with Procera and KaVo Everest CAD/CAM crown-copings.

关键词： CAD/CAM Copings Microleakage Marginal discrepancy Panavia F.2

Development of Unilateral Piriformis Syndrome in a Female with Congenital Leg Length discrepancy

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Open Journal of Orthopedics 2012年第4期2卷 135-137页

作者： Chia-Hung Sun Shao-Chi Lu Yung-Tsan Wu Shin-Tsu Chang Department of Physical Medicine and Rehabilitation Tri-Service General Hospital School of Medicine National Defense Medical Center Taipei Chinese Taipei.

Background: This is a rare case of piriformis syndrome. We discuss the patient’s symptoms, imaging study results, laboratory examination findings, and prescribed treatment in an attempt to determine the possible mechanisms or reasons for this patient’s development of piriformis syndrome. Methods: The patient is a 22-year-old female soldier who was admitted for lower back pain with soreness radiating to her right buttock and right lower extremity. We found that she had leg length discrepancy under X-ray finding. She was diagnosed piriformis syndrome by physical examination and Magenetic Resonance Image. Results: We performed scanography for lower extremities revealed a left femur length of 42.7 cm, a right femur length of 43.3 cm, a left tibia length of 33.2 cm, and a right tibia length of 33.6 cm;her left lower extremity was 1 cm shorter than her right. The MRI of sacrum also reveals hypertrophy of right piriformis muscle. Conclusions: Piriformis syndrome might be caused by short-term compensation in congenital leg length discrepancy. The patient with leg length discrepancy changed posture when standing, walking, and running. These compensation postures could lead to abnormality position of bones where there is insertion of the muscle.

关键词： Piriformis Syndrome Leg Length discrepancy Visual Analogue Scale Back Pain Postural Compensation

Analysis on the Individual discrepancy in English Teaching

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海外英语 2011年第15期 88-90页

作者：罗兰 Department of English School of Foreign Languages Wuhan University of Technology

Recently, a great tide of English teaching reform swept across China, advocating the innovation of educational concept and teaching mode. However, the phenomenon of rigid uniformity in teaching process is still commonly seen, neglecting the individual discrepancy of students. The individual discrepancy is manifested by both the congenital heredity and the acquired disposition. Supported by the Chinese traditional theory of teaching students in accordance with their aptitude and Vygotsky's "the zone of proximal development" theory, this paper illustrates the importance of paying attention to the individual discrepancy from the perspective of students' growing background and personality. In addition, standing on the point of view of relevant authority and English teacher, the author tries to put forward some countermeasures.

关键词： individual discrepancy teaching students in accordance with their aptitude the zone of proximal development (ZPD) teacher’s role

On the Two-step Communication Concerning Cultural discrepancy in Translating Foreign-Oriented Publicity

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海外英语 2014年第1X期 112-113,121页

作者：张晓婷浙江外国语学院浙江杭州310012

Cultural discrepancy constitutes a major obstacle in translating Chinese publicity materials to the outside world. This paper, viewed through the lens of communication and media studies, divides the transmission of cultural discrepancy into two stages, namely, the dialogues between the translator and the source text author and between the translator and the intended readership in the target language. Only with a two-step communication can a most appropriate strategy be adopted to deal with the cultural points.

关键词： cultural discrepancy communication translator publ