fundamentals of wireless communication technology ppt
Fundamentals of Wireless Communication
Ngày tải lên :
20/10/2013, 07:15
... hugemongous.
46
EE 290S: Fundamentals of Wireless Communication
Course Notes
U.C. Berkeley Fall 2002
Instructor: David Tse
Co-written with: Pramod Viswanath
September 18, 2002
fades of the channel (i.e. ... 1000 (30 dB). Stupendous amounts of power would be required for
more reliable communication.
Before we explore further the root cause of the poor performance of this detector,
we note that there ... gain, there is a law of diminishing marginal return: as L increases, the
marginal benefit decreases because of the law of large numbers, eventually converging
to the performance of the AWGN channel....
- 20
- 541
- 0
Tài liệu Fundamentals Of Power Electronics P2 pptx
Ngày tải lên :
13/12/2013, 01:15
... m)
of boost, 18, 26, 127, 381
of buck, 18, 120, 381
of buck-boost, 18, 128, 381
of Cuk converter, 32, 381
of loss-free resistor networks, 376-381
in low-harmonic rectifiers, 593-595
modeling of, ... currents, table of, 609
of near-ideal rectifier waveforms, 604-609
Rotation of three-terminal cell, 141-142
Saturation
of inductors, 462, 465-466
of magnetic materials, 458-460
of transformers, ... 458-460
of free space, m
0
, 458
relative, m
r
, 458
Phase asymptotes
of complex poles, 279-282
inverted forms, 272
of real pole, 266-268
of real zero, 269
of RHP zero, 270
Phase control
of resonant...
- 20
- 665
- 1
Tài liệu Fundamentals of Machine Design P2 ppt
Ngày tải lên :
17/12/2013, 11:15
...
• Types and uses of some common non-ferrous metals.
• Types and uses of some non-metals.
• Important mechanical properties of materials.
1.2.1 Introduction
Choice of materials for a ... considered to be the ability of the material to absorb energy in the
plastic zone. The measure of toughness is the amount of energy
absorbed after being stressed upto the point of fracture.
(i) Creep- ... loading, such as, fasteners, springs etc.
1.2.8 Summary of this Lesson
In this lesson the properties and uses of different types of metals and non-
metals, generally used in machine design,...
- 14
- 610
- 0
Tài liệu Fundamentals of Machine Design P3 pptx
Ngày tải lên :
17/12/2013, 11:15
... other, the nature of fit is
dependent on the limits of tolerances and fundamental deviations of the mating
parts. The nature of assembly of two mating parts is defined by three types of fit
system, ... or
manufacture a product range. The range of operational speeds of a
machine or the range of powers of a typical machine may be also as per a
series of preferred numbers.
Version 2 ... The nature of assembly of two mating parts is defined by three types of fit
system, Clearance Fit, Transition Fit and Interference Fit.
Clearance Fit: In this type of fit, the shaft of largest...
- 13
- 583
- 0
Tài liệu Fundamentals of Fiber Cable Management pptx
Ngày tải lên :
21/12/2013, 07:16
... +1-952-917-3237 • For a listing of ADC’s global sales office locations, please refer to our web site.
FUNDAMENTALS OF FIBER CABLE MANAGEMENT
8/05 • 10273
Fundamentals of Fiber Cable Management
12
www.adc.com ... enable providers to reap the full
benefits of fiber and operate a highly profitable network.
Fundamentals of Fiber Cable Management
8/05 • 10273
Fundamentals of Fiber Cable Management
13
www.adc.com ... optical couplers
Fundamentals of
Fiber Cable Management
WHITE PAPER
8/05 • 10273
Fundamentals of Fiber Cable Management
23
www.adc.com • +1-952-938-8080 • 1-800-366-3891
The focus of the purchasing...
- 23
- 545
- 0
Tài liệu Fundamentals of Machine Design P6 pptx
Ngày tải lên :
25/12/2013, 23:18
... strains may be derived in terms of these displacements.
2.3.2 Normal strains
Consider an element AB of length δx ( figure-2.3.2.1). If displacement of end A is
u, that of end B is
u
u
x
∂
+δ
∂
x
...
discussed.
2.3.9 Reference for Module-2
1) Mechanics of materials by E.P.Popov, Prentice hall of India, 1989.
2) Mechanics of materials by Ferdinand P. Boer, E. Russel Johnson, J.T
Dewolf, ... principal strains in terms of
principal stresses as
[]
[]
[]
1123
223
3312
1
()
E
1
()
E
1
()
E
ε= σ−νσ+σ
ε= σ−νσ+σ
ε= σ−νσ+σ
1
From the point of view of volume change or dilatation...
- 11
- 491
- 0
Tài liệu Fundamentals of Machine Design P11 ppt
Ngày tải lên :
25/12/2013, 23:18
... the end of this lesson, the students should have the knowledge of
• Fasteners and their types: permanent and detachable fasteners.
• Different types of pin joints.
• Different types of keys ... of keys and their applications.
4.1.1 Introduction: Types of fasteners
A machine or a structure is made of a large number of parts and they need be
joined suitably for the machine to ... and d are the width, length and diameter of the shaft
respectively and τ
y
is the yield stress in shear of the key material. Taking
τ
y
to be half of the tensile yield stress and substituting...
- 12
- 456
- 0
Tài liệu Fundamentals of Machine Design P13 ppt
Ngày tải lên :
25/12/2013, 23:18
... Summary of this Lesson
In this lesson firstly different types of bolts, set screws and studs are
discussed. Some details of set and tapping screws are also discussed.
Constructional details of ... point styles are available. Some of them are shown in
figure-4.3.1.3.
Version 2 ME, IIT Kharagpur
4.3.1.3F- Different types of set screws (Ref.[6])
4.3.2 ... 3
Threaded Fasteners
Version 2 ME, IIT Kharagpur
4.3.1.2F- Types of bolt heads (Ref.[6])
Tapping screws
These are one piece fasteners which cut or form a mating...
- 7
- 333
- 0
Tài liệu Fundamentals of Machine Design P16 ppt
Ngày tải lên :
23/01/2014, 04:20
... diameter of rubber
bushing d
r
is given by
d
r
= d
b
+2 t
br
+2 t
r
where d
b
is the diameter of the bolt or pin , t
br
is the thickness of the brass
sleeve and t
r
is the thickness of rubber ... yield shear
value of flange material 60MPa.
f
τ
Q.2: Determine the suitable dimensions of a rubber bush for a flexible
coupling to connect of a motor and a pump. The motor is of 50 KW and
runs ... diameter of the rubber bush as
d
bush
= Enlarged diameter of the pin + 2x brass sleeve thickness.
A brass sleeve of 2mm thickness is sufficient and we have
d
bush
= 20mm
Rubber bush of core...
- 15
- 366
- 0
Tài liệu Fundamentals of Machine Design P17 ppt
Ngày tải lên :
23/01/2014, 04:20
... factor of safety let d = 10 mm.
Q.2. A single square thread power screw is to raise a load of 50 KN. A screw
thread of major diameter of 34 mm and a pitch of 6 mm is used. The
coefficient of friction ... pitch of 2
mm. The frictional coefficient is 0.15 for both the threads and the collar. The
collar has a frictional diameter of 16 mm. The handle is made of steel with
allowable bending stress of ... is
3
My 32M
I
d
σ= =
π
where d is the diameter of the handle.
Version 2 ME, IIT Kharagpur
6.1.1.1T – Dimensions of three different series of square thread form.
Fine Series Normal...
- 15
- 555
- 0
Tài liệu Fundamentals of Machine Design P21 ppt
Ngày tải lên :
23/01/2014, 04:20
... used in the
design of leaf springs.
7.3.6 Standard sizes of leaf spring
Width (mm) : 25-80 mm in steps of 5mm
Thickness (mm) : 2-8 mm in steps of 1mm, 10-16 mm in steps of 2mm
Version ... leaf. This practice of stress relief in the master leaf is
known as Nipping of leaf spring. As a matter of fact, all the leaves of a laminated
leaf spring do have certain amount of nipping, so that ...
• Design theme of leaf springs
• Laminated spring and its modifications
7.3.1 Leaf Springs
In order to have an idea of working principle of a leaf spring, let us think of the
diving...
- 10
- 328
- 0
Tài liệu Fundamentals of Machine Design P28 ppt
Ngày tải lên :
27/01/2014, 14:20
...
At the end of this lesson, the students should be able to understand:
• Basic failure mechanisms of riveted joints.
• Concepts of design of a riveted joint.
1. Strength of riveted joint: ... shear.
There are other mechanisms of failure of the joint e.g. tearing along the
innermost row and shearing or crushing of rivets in other two rows etc., but
all of them will have higher resistance ... allowable tensile stress of the plate material
t
s
= pitch
p
= diameter of the rivet hole
d
t = thickness of the plate
Failure path in
tension
P
P
Figure 10.2.1: Failure of plate in tension...
- 9
- 380
- 0
Tài liệu Fundamentals of Machine Design P29 ppt
Ngày tải lên :
27/01/2014, 14:20
... may change leading to weakening of the joint.
(iv) Defects: of various kinds like incomplete penetration, porosity, slag
inclusion which affect the strength of a welded joint.
(v) Stress concentration: ...
standard textbook on welding.
3. Strength of welded joints:
Adequate care must be taken to enhance strength of the welded joint. It is
seen that strength of a welded joint gets affected mainly ...
Groove angle
Length of weld
Pitch (center to center spacing)
Arrow connecting reference
line to arrow
Side of joint
Field weld symbol
Weld all around symbol
No of spots or projection...
- 10
- 299
- 0
Tài liệu Fundamentals of Machine Design P32 ppt
Ngày tải lên :
27/01/2014, 14:20
... stress of the rivet.
Model questions and answers:
Q. 1. The base of a pillar crane is fastened to the foundation by n bolts equally
placed on a bolt circle of diameter d. The diameter of the ... load.
Choose the line joining the center of the base and the point of application
of the load as the reference line. In this case
i
y
=distance of the i-th bolt from the tilting point
...
3
3
2
2
1
1
tan
l
y
l
y
l
y
===≈
θθ
where
i
y
=elongation of the i-th bolt
=distance of the axis of the i-th bolt from point O.
i
l
If the bolts are made of same material and have same dimension, then...
- 10
- 203
- 0
Tài liệu OVERSIGHT OF ASSISTED REPRODUCTIVE TECHNOLOGY pptx
Ngày tải lên :
13/02/2014, 16:20
... as well. In the realm of professional self-
regulation, an on-going system of quality assurance includes specialty
training and certification of physicians, accreditation of clinics and ethical
and ... (www.cms.hhs.gov/CLIA/07_Program_
Descriptions_Projects.asp#TopOfPage).
Professional Self-Regulation
A profession is characterized by skill based on a unique body of knowledge, a
code of ethics, and a social contract with ... Reproductive Technology
(SART), strictly monitors member clinics for adherence to ASRM guidelines,
accreditation of their embryology labs, qualification of their staff, and submission
of data to...
- 12
- 399
- 1
- fundamentals of wireless communication
- fundamentals of wireless communication david tse and pramod viswanath
- fundamentals of wireless communication solution
- fundamentals of wireless communication ebook
- fundamentals of wireless communication solution manual pdf
- fundamentals of wireless communication pramod viswanath pdf
- fundamentals of wireless communication pdf
- fundamentals of wireless communication pdf free download
- fundamentals of wireless communication engineering technologies
Tìm thêm:
- hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam
- xác định các mục tiêu của chương trình
- xác định các nguyên tắc biên soạn
- khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn
- khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản
- khảo sát chương trình đào tạo gắn với các giáo trình cụ thể
- xác định thời lượng học về mặt lí thuyết và thực tế
- tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam
- điều tra đối với đối tượng giảng viên và đối tượng quản lí
- điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1
- khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam
- khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu
- nội dung cụ thể cho từng kĩ năng ở từng cấp độ
- xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct
- phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ
- mở máy động cơ lồng sóc
- mở máy động cơ rôto dây quấn
- các đặc tính của động cơ điện không đồng bộ
- hệ số công suất cosp fi p2
- đặc tuyến hiệu suất h fi p2