multipurpose internet mail extensions a standard speci

MIME ( Multipurpose Internet Mail Extensions)

MIME ( Multipurpose Internet Mail Extensions)

... body parts as audio, image, or several other kinds of data A distinguished parameter syntax allows further specification of data format details, particularly the specification of alternate character ... boundary, and the last one followed by a closing boundary Each part starts with an encapsulation boundary, and then contains a body part consisting of header area, a blank line, and a body area ... for "application" include spreadsheets, data for mail- based scheduling systems, and languages for "active" (computational) email (Note that active email entails several securityconsiderations,...

Ngày tải lên: 30/10/2015, 17:46

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MIME ( Multipurpose Internet Mail Extensions) Part 1

MIME ( Multipurpose Internet Mail Extensions) Part 1

... example, to send a large audio message as several partial messages, and still have it appear to the recipient as a simple audio message rather than as an encapsulated message containing an audio ... "application" include spreadsheets, data for mailbased scheduling systems, and languages for "active" (computational) email (Note that active email and other application data may entail several security ... important A gateway between Internet and X.400 mail, for example, must be able to tell the difference between a body part that contains an image and a body part that contains an encapsulated message,...

Ngày tải lên: 30/10/2015, 17:46

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Tiểu luận môn an ninh hệ thống thông tin SMIME (SecureMultipurpose Internet Mail Extensions)

Tiểu luận môn an ninh hệ thống thông tin SMIME (SecureMultipurpose Internet Mail Extensions)

... duyệt mail máy văn phòng họ duyệt mail lần nhà mail lấy máy văn phòng không mail server Vấn đề giải sữ dụng giao thức IMAP để duyệt mail Giao thức IMAP trình bày sau 1.3 IMAP (Internet Message Access ... thể application ví dụ tập tin word, pdf khai báo application/msword, application/pdf a application/octet-stream subtype octet-stream dùng để khai báo body ch a liệu dạng nhị phân (binary data) ... đến hai giao thức POP (Post Office Protocol) IMAP (Internet Message Access protocol) 1.1 SMTP (Simple Mail Transfer Protocol) SMTP giao thức sử dụng rộng rãi cho việc gửi mail từ MUA đến mail...

Ngày tải lên: 21/08/2014, 15:38

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standard specification for bonding plastic concrete to hardened concrete with a multi-component epoxy adhesive

standard specification for bonding plastic concrete to hardened concrete with a multi-component epoxy adhesive

... procedures, materials, and performance criteria for which alternatives are permitted or for which provision is not made in Standard Specification ACI 503.2 Or exceptions shall be taken to Standard Specification ... before application Part 2.2-Products 2.2.1 Epoxy adhesive Specify Class and Grade as indicated Also specify additional performance requirements and/or approved suppliers, as advisable 2.2.2 Plastic ... be a part of this Standard Specification AC1 503.2 the same as if fully set forth herein, unless otherwise indicated in the contract documents 1.4.2 ASTM standard C 831-87 Standard Specification...

Ngày tải lên: 24/10/2014, 22:12

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standard specification for producing a skid-resistant surface on concrete by the use of a multi-component epoxy s

standard specification for producing a skid-resistant surface on concrete by the use of a multi-component epoxy s

... 881-87 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine Standard Method for Sieve Analysis of Fine and Coarse Aggregates ... choose a less coarse aggregate gradation The preparation and inspection of a small sample using the proposed aggregate and coating at their proposed rate of application prior to publication of a specification ... rate of 12 + lb&d- 2.3.5 Field quality control-The inspector shall determine that coating and skid-resistant aggregate are applied at a rate at least equal to that specified and that aggregate...

Ngày tải lên: 24/10/2014, 22:12

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A 1020 _ A 1020M _ 02 : Standard Specification for Steel Tubes, Carbon and Carbon Manganese, Fusion Welded, for Boiler, Superheater, Heat Exchanger and Condenser Applications

A 1020 _ A 1020M _ 02 : Standard Specification for Steel Tubes, Carbon and Carbon Manganese, Fusion Welded, for Boiler, Superheater, Heat Exchanger and Condenser Applications

... continuous furnace, a lot shall include all tubes of the same size and heat, heat treated in the same furnace, at the same temperature, time at heat, and furnace speed 9.2 For Grade A tubes, hardness ... this standard or for additional standards and should be addressed to ASTM International Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee, ... is in a batch-type furnace, a lot shall include only those tubes of the same size and the same heat which are heat treated in the same furnace charge When the final heat treatment is in a continuous...

Ngày tải lên: 08/09/2016, 00:24

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Tiêu chuẩn ASTM A 1016A 1016M: Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes

Tiêu chuẩn ASTM A 1016A 1016M: Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes

... addition of a new grade to a specification shall be made to the chairman of the subcommittee that has jurisdiction over that specification A1 .1.2 The application shall be accompanied by a statement ... Product Analysis—Product analysis requirements and options, if any, shall be as contained in the product specification Withdrawn Available from the ASME International Headquarters, Three Park Ave., ... A, B, or commercial, as specified Level A preservation and level A or B packing shall be in accordance with MIL-STD-163 and commercial preservation and packing shall be in accordance with Practices...

Ngày tải lên: 08/09/2016, 00:30

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Tiêu chuẩn ASTM A 1014  : Standard Specification for Precipitation-Hardening Bolting Material (UNS N07718) for High Temperature Service

Tiêu chuẩn ASTM A 1014 : Standard Specification for Precipitation-Hardening Bolting Material (UNS N07718) for High Temperature Service

... the standard s Document Summary page on the ASTM website Annual Book of ASTM Available form American National Standards, Vol 01.01 Institute, 11 W 42 nd St., 13th Floor, New York, NY 10036 Annual ... in Table For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org For Annual Book of ASTM Standards, Vol 01.03 volume information, ... (Formerly Grade 718) Carbon, max Manganese, max Silicon, max Phosphorus, max Sulfur, max Chromium Cobalt, max .A Molybdenum Columbium + Tantalum Titanium Aluminum Boron, max IronB Copper, max NickelC...

Ngày tải lên: 08/09/2016, 00:34

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Tiêu chuẩn ASTM A 1012 – 02 Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins

Tiêu chuẩn ASTM A 1012 – 02 Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins

... and Package Marking 16.1 The tube shall be packaged in accordance with the manufacturer’s standard practice, unless otherwise agreed upon between the manufacturer and the purchaser and so stated ... this standard or for additional standards and should be addressed to ASTM International Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee, ... Specification A 1016 /A 1016M ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard Users of this standard are...

Ngày tải lên: 08/09/2016, 00:38

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Tiêu chuẩn ASTM A 1006 Standard Specification for Steel Line Pipe, Black, Plain End, Laser Beam Welded

Tiêu chuẩn ASTM A 1006 Standard Specification for Steel Line Pipe, Black, Plain End, Laser Beam Welded

... specification 7.5 Product analyses shall be made on at least two samples from each heat of steel 7.6 All analyses shall be in accordance with Test Methods, Practices, and Terminology A 751, and shall ... tolerance Diameter measurements of pipe larger than NPS 20 shall be made with a diameter tape Diameter measurements (away from the ends) of pipe NPS 20 and smaller shall be made with a snap gage, ... a single pass with an appropriate shielding gas The pipe shall have one longitudinal seam The weld shall be made in accordance with a qualified welding procedure as specified in ASME Boiler and...

Ngày tải lên: 08/09/2016, 00:41

6 640 1
Tiêu chuẩn ASTM A 1005 : Standard Specification for Steel Line Pipe, Black, Plain End, Longitudinal and Helical Seam, Double SubmergedArc Welded

Tiêu chuẩn ASTM A 1005 : Standard Specification for Steel Line Pipe, Black, Plain End, Longitudinal and Helical Seam, Double SubmergedArc Welded

... 12.3.2 Surface Condition, Operator Qualifications—Extent of Examination, and Standardization Procedure– Surface condition, extent of examination, operator qualifications, and standardization procedure ... this standard or for additional standards and should be addressed to ASTM International Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee, ... A heat analysis shall be made for each heat of steel furnished under this specification 7.5 Product analyses shall be made on at least two samples from each heat of steel Product analysis for...

Ngày tải lên: 08/09/2016, 00:48

6 564 0
Tiêu chuẩn ASTM A 999 : Standard Specification for General Requirements for Alloy and Stainless Steel Pipe

Tiêu chuẩn ASTM A 999 : Standard Specification for General Requirements for Alloy and Stainless Steel Pipe

... Chemical Composition 5.1 Chemical Analysis—Samples for chemical analysis and method of analysis shall be in accordance with Test Methods, Practices, and Terminology A 751 5.2 Heat Analysis—An analysis ... weighed separately Portions of these standards appear in ASTM Book of Standards, Vol 01.01 Full text of these standards is available from American National Standards Institute, 11 West 42nd St., ... commercial, and packing shall be level A, B, or commercial, as specified Level A preservation and level A or B packing shall be in accordance with MIL-STD-163 and commercial preservation and packing...

Ngày tải lên: 08/09/2016, 00:50

10 569 0
Tiêu chuẩn ASTM A 989: Standard Specification for Hot IsostaticallyPressed Alloy Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

Tiêu chuẩn ASTM A 989: Standard Specification for Hot IsostaticallyPressed Alloy Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

... the load At least eight samples shall be checked from each batch load and a least one check/h shall be made from a continuous run When the furnace batch is less than eight parts, each part shall ... 0.03 A Cross-sectional area Product analysis for carbon, boron, columbium, and calcium shall conform to Table B A This table does not apply to heat analysis Product analysis limits for cobalt ... this standard or for additional standards and should be addressed to ASTM International Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee,...

Ngày tải lên: 08/09/2016, 00:53

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Tiêu chuẩn ASTM A 984 : Standard Specification for Steel Line Pipe, Black, PlainEnd, ElectricResistanceWelded

Tiêu chuẩn ASTM A 984 : Standard Specification for Steel Line Pipe, Black, PlainEnd, ElectricResistanceWelded

... penetration and coverage of the weld seam and its heat-affected zones by such heat treatment shall be confirmed by metallographic examination of weld area cross-section specimens, taken at least ... diameter measurements of pipe larger than NPS 20 shall be made with a diameter tape Outside diameter measurements, away from the ends, of pipe NPS 20 and smaller, shall be made with a snap gage, caliper, ... caliper, or other device that measures actual outside diameter in a single plane reference standard as shown in Fig Care should be taken in the preparation of the standard to ensure freedom from...

Ngày tải lên: 08/09/2016, 00:56

6 576 0
Tiêu chuẩn ASTM A 972: Standard Specification for Fusion Bonded EpoxyCoated Pipe Piles

Tiêu chuẩn ASTM A 972: Standard Specification for Fusion Bonded EpoxyCoated Pipe Piles

... the manufacturer’s plant with patching material prior to shipment 9.2 The areas of coating damage shall be prepared for the application of patching material by cleaning the damaged area, removing ... surface of each pipe pile Surface Preparation Permissible Coating Damage and Repair of Damaged Coating 9.1 Coating damage to pipe piles due to handling or other causes shall be repaired in the manufacturer’s ... packaging and tie-down bands for shipping shall be padded or made of material that shall not damage the coating Pipe piles shall be supported during shipping in a manner that prevents impact damage...

Ngày tải lên: 08/09/2016, 00:58

4 577 0
Tiêu chuẩn ASTM A 962: Standard Specification for Common Requirements for Steel Fasteners or Fastener Materials, or Both, Intended for Use at Any Temperature from Cryogenic to the Creep Range

Tiêu chuẩn ASTM A 962: Standard Specification for Common Requirements for Steel Fasteners or Fastener Materials, or Both, Intended for Use at Any Temperature from Cryogenic to the Creep Range

... product specification 19 Product Marking 19.1 Bars shall be marked in accordance with Specifications A 29 /A 29M or A 484 /A 484M as applicable 19.2 Grade and manufacturer’s identification symbols shall ... product specification Chemical Composition 7.1 Chemical Analysis—Heat or product chemical analysis shall be in accordance with Test Methods, Practices, and Terminology A 751 7.2 Heat Analysis—An analysis ... material from externally threaded fasteners when the thread diameter is 1⁄2 in and under Materials and Manufacture 6.1 Bars shall be produced in accordance with Specifications A 29 /A 29M or A...

Ngày tải lên: 08/09/2016, 01:00

8 864 1
Giới thiệu internet mail

Giới thiệu internet mail

... dung Mail, cung cấp đ a người nhận sau giao Mail cho Message Transfer Agent (MTA) để gửi mail Các User Agent thực khác môi trường khác DOS, Windows, Macintosh hay Unix Đây chương trình Mail Client ... Một X.400 Mail System có chương trình Client chạy môi trường khác   Message Transfer Agent ( MTA ): Các MTA trạm xử lý Mail UA Mail sau soạn UA, gửi xuống MTA di chuyển từ MTA đến MTA khác đến ... chương trình Client Mail box coi đ a người sử dụng, kho ch a đựng liệu e -mail B Các thành phần Hệ thống Internet Mail User Agent thay cho chương trình e -mail phận MTA thay cho q a trình Server, Client...

Ngày tải lên: 03/09/2012, 16:02

6 525 2
Tìm hiểu về các Web Server thông dụng hiện nay và xây dựng một chương trình Internet mail

Tìm hiểu về các Web Server thông dụng hiện nay và xây dựng một chương trình Internet mail

... forward-path buffer  DATA(DATA) : Receiver-SMTP xử lý dòng theo sau lệnh mail từ Sender-SMTP đến Nó làm cho mail data từ lệnh ghi vào data buffer Mail data ch a ký tự 128 mã ACSII Data mail ... message) mail data đ a vào mailbox user Giao chuyển mail thành công message phân phát đến terminal hay mailbox SAML FROM: Lệnh SEND And MAIL đòi hỏi mail data phân phát ... FROM: TO: Sẽ chia ca đến host B với đối số FROM: TO: Lệnh sinh đối số forward-path gắn...

Ngày tải lên: 23/11/2012, 08:12

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