The diameter

Dedicated to the memory of V. I. Gurarii Abstract We prove that if X is a separable infinite dimensional Banach space then its isomorphism class has infinite diameter with respect to the Banach-Mazur distance. One step in the proof is to show that if X is elastic then X contains an isomorph of c0 .

16p noel_noel 17-01-2013 31 4   Download

Tuyển tập các báo cáo nghiên cứu khoa học về toán học trên tạp chí toán học quốc tế đề tài: The diameter and Laplacian eigenvalues of directed graphs...

6p thulanh5 14-09-2011 25 3   Download

Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học tạp chí Department of Mathematic dành cho các bạn yêu thích môn toán học đề tài: The Diameter of Almost Eulerian Digraphs...

11p thulanh7 04-10-2011 25 3   Download

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: "Effect of contrasting water supply on the diameter growth of Norway spruce and aspen in mixed stands: a case study from the southern Russian taiga"

10p toshiba5 19-09-2011 22 2   Download

Tuyển tập các báo cáo nghiên cứu khoa học về toán học trên tạp chí toán học quốc tế đề tài: On the Diameter of Matroid Ports...

9p thulanh6 15-09-2011 20 1   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Estimation of the diameter and cross-sectional area of the internal jugular veins in adult patients...

4p coxanh_6 30-10-2011 18 1   Download

Difficulty in addressing contamination in low permeability soils may be alleviated to some degree by controlled pneumatic or hydraulic fracturing of the soil. However, engineered hydraulic fractures generally cannot be spaced more closely than about 5 feet, which means that chemical oxidants must still penetrate a substantial thickness of low permeability soil to come into contact with the contamination. Deep soil mixing with large diameter drill augers is the most effective method currently available to increase contact between adsorbed contaminants and the oxidants.

408p cao_can 29-12-2012 36 11   Download

Abstract. The classical Heron problem states: on a given straight line in the plane, find a point C such that the sum of the distances from C to the given points A and B is minimal. This problem can be solved using standard geometry or differential calculus. In the light of modern convex analysis, we are able to investigate more general versions of this problem. In this paper we propose and solve the following problem: on a given nonempty closed convex subset of Rs , find a point such that the sum of the distances from that point to n given nonempty closed convex subsets of...

96p camchuong_1 10-12-2012 24 4   Download

(BQ)In this paper a new contribution to the simulation and modelling of the EDM process is presented. Temperature fields within the workpiece generated by the superposition of multiple discharges, as it happens during an actual EDM operation, are numerically calculated using a finite difference schema. The characteristics of the discharge for a given operation, namely energy transferred onto the workpiece, diameter of the discharge channel and material removal efficiency can be estimated using inverse identification from the results of the numerical model.

10p xuanphuongdhts 27-03-2017 10 1   Download

CONTENTS CONTENTS C H A P T E R 19 1. Introduction. 2. Types of Pulleys for Flat Belts. 3. Cast Iron Pulleys. 4. Steel Pulleys. 5. Wooden Pulleys. 6. Paper Pulleys. 7. Fast and Loose Pulleys. 8. Design of Cast Iron Pulleys. .lat Belt Pulleys 19.1 Introduction The pulleys are used to transmit power from one shaft to another by means of flat belts, V-belts or ropes. Since the velocity ratio is the inverse ratio of the diameters of driving and driven pulleys, therefore the pulley diameters should be carefully selected in order to have a desired velocity ratio.

12p hadalabo 29-09-2010 64 16   Download

Measurement of macro-geometric characteristic variables involves the acquisition of features of geometric elements that are defined in design by dimensions and tolerances for dimensional, form, and positional deviations (Figure 3.1-1). The term ‘dimension’ refers both to the diameter of rotationally symmetrical workpieces and to distances and angles between planes and straight lines and to cone angles. The sensors used for measurement can be classified according to the method used to acquire the measured value into mechanical, electrical, and optoelectronic sensors....

28p vaseline 30-08-2010 73 12   Download

1. Introduction. 2. Types of Pulleys for Flat Belts. 3. Cast Iron Pulleys. 4. Steel Pulleys. 5. Wooden Pulleys. 6. Paper Pulleys. 7. Fast and Loose Pulleys. 8. Design of Cast Iron Pulleys. .lat Belt Pulleys 19.1 Introduction The pulleys are used to transmit power from one shaft to another by means of flat belts, V-belts or ropes. Since the velocity ratio is the inverse ratio of the diameters of driving and driven pulleys, therefore the pulley diameters should be carefully selected in order to have a desired velocity ratio.

12p tieutaithan 15-11-2010 64 9   Download

The art of imaging blood vessels in the human body is called angiography. Since its inception, physicians have benefited from the field of angiography imaging. This has helped them to diagnostically treat patients with various kinds of vascular diseases. Recently, because of the technology growth in fields of acquisition techniques, such as magnetic resonance, computer tomography, digital subtraction angiography, and ultrasound, the vascular imaging research community has become very interested. But acquisition is just one side of the coin.

543p echbuon 02-11-2012 26 9   Download

An Accident with 60Co Distribution of carriages inside the irradiation chamber, indicating the confined space when fully loaded. •Problem - 3 improperly stored tele-therapy units •1 unit was dismantled (100kg cylinder removed, 10” diameter x 20” long) •cylinder was cut open releasing source 1”

73p suatuoi_nguyenchat 18-07-2011 48 7   Download

Labor is the normal process of coordinated, effective involuntary uterine contractions that lead to progressive cervical effacement and dilatation and descent and delivery of the newborn and placenta. Near its termination, labor may be augmented by voluntary bearing-down efforts to assist in delivery of the conceptus. False labor is characterized by irregular (both in interval and duration), brief contractions without fundal dominance, cervical change, or a lower station of the fetal vertex or breech.

46p lananhanh123 27-08-2011 30 6   Download

• This chapter provides fundamental background on processes of drawing of rods, wires and tubes. • Mathematical approaches for the calculation of drawing load will be introduced. • Finally drawing defects occurring during the process will be highlighted and its solutions will be included. Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 Introduction : wire drawing www.e6.com • Wire drawing involves reducing the diameter of a rod or wire by passing through a series of drawing dies or plates.

47p tieulac 27-11-2010 44 5   Download

KEENSERTS Inserts and Studs provide strong, permanent, metal threads in virtually any material - ferrous, non-ferrous or non-metallic. Tridair pioneered the design of this type of insert and is able to offer the widest available choice of standard sizes,lengths, materials and types. Because of our years of application experience, we are geared to provide solutions to all types of special insert problems. If you don’t see a design in this catalog that will suit your application, consult our Sales Engineer for other designs to meet your specific needs....

60p notnhackhongloi 05-01-2013 115 5   Download

Paso del Norte’s growth has had serious environmental consequences, particularly for air quality, which is the worst on the U.S.–Mexico border. Ciudad Juárez exceeds national ambient air quality standards (official norms) for ozone, carbon monoxide, and particulate matter less than 10 microns in diameter (PM10), and El Paso exceeds national ambient air quality standards for ozone, PM10, and carbon monoxide. An overwhelming body of evidence links such air pollution to respiratory and cardiovascular disease, and to premature mortality (U.S. EPA 1999).

0p doipassword 01-02-2013 19 5   Download

Drill the counter bored hole Ø14-25 Select the face of the Ø50 cylinder. Choose hole+facing and fill out the dialogues as shown. . 8 Drill and tap 3 holes M4 Set the current coordinate system onto the face of the 50mm cylinder Select the normal (or top) view Draw a 38mm diameter circle at 0,0 Place the axis lines on the circle . . . . VIETNAM CAD/CAM TECHNOLOGY .,CO.LTD Support email: badaicadcam@gmail.

20p tieulac 29-11-2010 45 4   Download

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: The effect of different stand density on diameter growth response in Scots pine stands in relation to climate situations...

13p toshiba4 13-09-2011 31 4   Download