The document discusses the design and fabrication of an automobile gearbox. It outlines the objectives to design a helical gearbox and study gear manufacturing processes. It then discusses various aspects of gearbox design like gear ratios, materials selection, automatic vs manual transmissions, and presents some results like pitch line velocities. Market research was also conducted to determine costs. The conclusion states that gear and shaft design is complete and fabrication will begin soon.
This document discusses different types of air compressors. It describes positive displacement compressors as those that trap and compress fixed amounts of air, including rotary and reciprocating compressors. Rotary compressors use a rotating roller to compress air, while reciprocating compressors use pistons driven by a crankshaft. Dynamic compressors, like centrifugal and axial compressors, continuously compress air using rotating impellers to increase air velocity and pressure. The document outlines the basic workings and advantages and disadvantages of these compressor types.
The document discusses bending operations in sheet metal manufacturing. There are two main types of bending: V-bending and edge bending. V-bending is done with a V-shaped die for low production, while edge bending uses a pressure pad and more complex dies for high production. When metal is bent, the inside of the neutral plane is compressed and the outside is stretched. After bending, springback occurs as the bent part partially recovers toward its original shape due to residual elastic energy.
El documento presenta la historia y desarrollo de la tecnología neumática industrial, desde sus orígenes en Alejandria hasta su uso actual. Explica las ventajas de la neumática como incremento de producción, reducción de costos, robustez, facilidad de implantación y seguridad. También describe brevemente las propiedades físicas del aire como compresibilidad, elasticidad, difusibilidad y expansibilidad.
Ifp ch. no. 4 intro. to & compon. of pneumatic systemAmol Kokare
?
Industrial Fluid power ppt for Ifp ch. no. 4 intro. to & compon. of pneumatic system, By Prof. Kokare A.Y.
Lecturer at Babasaheb phadtare polytechnic, Kalamb-Walchandnagar.
This document discusses different types of machine keys used to connect rotating elements like shafts, gears, and pulleys. It describes saddle keys, sunk keys, taper keys, parallel keys, and feather keys. Design considerations for keys include preventing slippage while transmitting torque. Keys are designed based on withstanding shear and compressive stresses. Sample problems demonstrate how to calculate the required key dimensions given input torque and shaft dimensions. Splines are also discussed as an alternative to keys, with their torque capacity determined by factors like spline area, mean radius, and permissible pressure.
The document discusses multi-point fuel injection (MPFI) systems. It describes the components of an MPFI system, including the air intake system, pressure regulator system, control system, fuel pump control system, and functional divisions. An MPFI system injects fuel into individual cylinders based on commands from the engine control module. This provides faster throttle response and higher output under varying driving conditions compared to carburetor systems. The MPFI system can be divided into three main components: the electronic control unit, fuel system, and air induction system.
The document discusses valves, their function, types, components, advantages, and disadvantages. Valves stop and start fluid flow, control the direction of flow, and relieve pressure. The main types discussed are gate valves, safety valves, and needle valves. Ball valves are described in more detail, including their components like the hand wheel, stem, bonnet, and ball. Ball valves provide quick opening and closing and good shut off but only allow flow in one direction and are not suitable for high pressure or chemicals.
This document summarizes the process of forging and provides details on:
- Forging involves working metal under compressive forces like hammering or pressing to obtain a useful shape and improve mechanical properties.
- Hammer forging focuses forces on the surface while press forging uses slower compressive forces that increase pressure before release.
- Factors that determine forgeability include the metal's lattice structure, with FCC being most forgeable, followed by BCC then HCP, and higher temperatures also improve forgeability.
- Common metals suitable for forging include aluminum alloys, magnesium alloys, copper alloys, and carbon steels. Forging temperatures must be above the metal's recrystallization point
The document discusses the four stroke petrol engine. It begins by introducing the four main components: the intake stroke where air-fuel mixture enters the combustion chamber, the compression stroke where the piston compresses the mixture, the power stroke where combustion occurs and the piston is pushed down, and the exhaust stroke where burnt gases are pushed out. It then explains each stroke in more detail and analyzes the thermodynamic process. Advantages include less fuel consumption and higher efficiency, while disadvantages are more complex design and higher costs. Applications include use in cars, motorcycles, boats and other small engines.
The document summarizes the key components and working principle of a gas turbine power plant. It discusses how air is compressed in the compressor and mixed with fuel in the combustion chamber. The hot gases produced are used to power the turbine, which drives the generator to produce electricity. Around 66% of the power generated is used to run the compressor, with only 34% available for power generation.
The pressure energy is fed to the actuator through a number of control block called valves.
? Various type of valve are used in hydraulic system to control or regulate the flow medium.
? Basicallyvalvesareexpectedtocontrol: – Direction
– Pressure
– Flow
– Otherspecialfunctions.
Steam condensers - Part 4 (Surface condensers)AVDHESH TYAGI
?
This document is a presentation on steam condensers by Avdhesh Tyagi from G. L. Bajaj Institute of Technology & Management. It discusses the working of surface condensers, including that exhaust steam and cooling water do not directly contact each other. It then describes the down flow, central flow, inverted flow, regenerative, and evaporative types of surface condensers. The presentation concludes by stating the department and institute's goals of providing valuable resources to industry and society and creating professionally competent and socially sensitive engineers.
Visual Studio Code はエンジニアのみなさんでしたら、とても馴染み深い印象をもたれているのではないでしょうか?現在、私はマイクロソフト社で Developer Advocate として VS Code 開発チームとも一緒に働いています。今回は Developer Experience の観点から、マイクロソフトの開発者たちと試みた取り組みに関してご紹介します。今回の試みでは、開発者の体験をより良いものにし、モチベーションを上げるために、開発者ならば誰もが好きな VS Code のエクステンションを使ったアイデアを実施しました。また、技術的な観点から VS Code の新機能や、これからの取り組みについてもお話ししたいと思っています。
The document discusses multi-point fuel injection (MPFI) systems. It describes the components of an MPFI system, including the air intake system, pressure regulator system, control system, fuel pump control system, and functional divisions. An MPFI system injects fuel into individual cylinders based on commands from the engine control module. This provides faster throttle response and higher output under varying driving conditions compared to carburetor systems. The MPFI system can be divided into three main components: the electronic control unit, fuel system, and air induction system.
The document discusses valves, their function, types, components, advantages, and disadvantages. Valves stop and start fluid flow, control the direction of flow, and relieve pressure. The main types discussed are gate valves, safety valves, and needle valves. Ball valves are described in more detail, including their components like the hand wheel, stem, bonnet, and ball. Ball valves provide quick opening and closing and good shut off but only allow flow in one direction and are not suitable for high pressure or chemicals.
This document summarizes the process of forging and provides details on:
- Forging involves working metal under compressive forces like hammering or pressing to obtain a useful shape and improve mechanical properties.
- Hammer forging focuses forces on the surface while press forging uses slower compressive forces that increase pressure before release.
- Factors that determine forgeability include the metal's lattice structure, with FCC being most forgeable, followed by BCC then HCP, and higher temperatures also improve forgeability.
- Common metals suitable for forging include aluminum alloys, magnesium alloys, copper alloys, and carbon steels. Forging temperatures must be above the metal's recrystallization point
The document discusses the four stroke petrol engine. It begins by introducing the four main components: the intake stroke where air-fuel mixture enters the combustion chamber, the compression stroke where the piston compresses the mixture, the power stroke where combustion occurs and the piston is pushed down, and the exhaust stroke where burnt gases are pushed out. It then explains each stroke in more detail and analyzes the thermodynamic process. Advantages include less fuel consumption and higher efficiency, while disadvantages are more complex design and higher costs. Applications include use in cars, motorcycles, boats and other small engines.
The document summarizes the key components and working principle of a gas turbine power plant. It discusses how air is compressed in the compressor and mixed with fuel in the combustion chamber. The hot gases produced are used to power the turbine, which drives the generator to produce electricity. Around 66% of the power generated is used to run the compressor, with only 34% available for power generation.
The pressure energy is fed to the actuator through a number of control block called valves.
? Various type of valve are used in hydraulic system to control or regulate the flow medium.
? Basicallyvalvesareexpectedtocontrol: – Direction
– Pressure
– Flow
– Otherspecialfunctions.
Steam condensers - Part 4 (Surface condensers)AVDHESH TYAGI
?
This document is a presentation on steam condensers by Avdhesh Tyagi from G. L. Bajaj Institute of Technology & Management. It discusses the working of surface condensers, including that exhaust steam and cooling water do not directly contact each other. It then describes the down flow, central flow, inverted flow, regenerative, and evaporative types of surface condensers. The presentation concludes by stating the department and institute's goals of providing valuable resources to industry and society and creating professionally competent and socially sensitive engineers.
Visual Studio Code はエンジニアのみなさんでしたら、とても馴染み深い印象をもたれているのではないでしょうか?現在、私はマイクロソフト社で Developer Advocate として VS Code 開発チームとも一緒に働いています。今回は Developer Experience の観点から、マイクロソフトの開発者たちと試みた取り組みに関してご紹介します。今回の試みでは、開発者の体験をより良いものにし、モチベーションを上げるために、開発者ならば誰もが好きな VS Code のエクステンションを使ったアイデアを実施しました。また、技術的な観点から VS Code の新機能や、これからの取り組みについてもお話ししたいと思っています。
34. Appleのガイドラインを振り返る
2.7 Apps that download code in any way or form will be rejected
2.8 Apps that install or launch other executable code will be
rejected
App Store Review Guidelines (2015)
35. Appleのガイドラインを振り返る
2.7 Apps that download code in any way or form will be rejected
2.8 Apps that install or launch other executable code will be
rejected
App Store Review Guidelines (2015)
36. Appleのガイドラインを振り返る
2.5.2 Apps should be self-contained in their bundles, and may
not read or write data outside the designated container area,
nor may they download, install, or execute code which
introduces or changes features or functionality of the app,
including other apps. (抜粋)
App Store Review Guidelines (2016)
37. Appleのガイドラインを振り返る
2.5.2 Apps should be self-contained in their bundles, and may
not read or write data outside the designated container area,
nor may they download, install, or execute code which
introduces or changes features or functionality of the app,
including other apps. (抜粋)
App Store Review Guidelines (2016)
38. Appleのガイドラインを振り返る
3.3.2 An Application may not download or install executable code.
Interpreted code may only be used in an Application if all scripts,
code and interpreters are packaged in the Application and not
downloaded. The only exception to the foregoing is scripts and code
downloaded and run by Apple's built-in WebKit framework or
JavascriptCore, provided that such scripts and code do not change
the primary purpose of the Application by providing features or
functionality that are inconsistent with the intended and advertised
purpose of the Application as submitted to the App Store.
Apple Developer Program License Agreement (2016)
39. Appleのガイドラインを振り返る
3.3.2 An Application may not download or install executable code.
Interpreted code may only be used in an Application if all scripts,
code and interpreters are packaged in the Application and not
downloaded. The only exception to the foregoing is scripts and code
downloaded and run by Apple's built-in WebKit framework or
JavascriptCore, provided that such scripts and code do not change
the primary purpose of the Application by providing features or
functionality that are inconsistent with the intended and advertised
purpose of the Application as submitted to the App Store.
Apple Developer Program License Agreement (2016)
40. Appleのガイドラインを振り返る
3.3.2 An Application may not download or install executable code.
Interpreted code may only be used in an Application if all scripts,
code and interpreters are packaged in the Application and not
downloaded. The only exception to the foregoing is scripts and code
downloaded and run by Apple's built-in WebKit framework or
JavascriptCore, provided that such scripts and code do not change
the primary purpose of the Application by providing features or
functionality that are inconsistent with the intended and advertised
purpose of the Application as submitted to the App Store.
Apple Developer Program License Agreement (2016)
41. Appleのガイドラインを振り返る
3.3.2 An Application may not download or install executable code.
Interpreted code may only be used in an Application if all scripts,
code and interpreters are packaged in the Application and not
downloaded. The only exception to the foregoing is scripts and code
downloaded and run by Apple's built-in WebKit framework or
JavascriptCore, provided that such scripts and code do not change
the primary purpose of the Application by providing features or
functionality that are inconsistent with the intended and advertised
purpose of the Application as submitted to the App Store.
Apple Developer Program License Agreement (2016)
44. 現在のAppleのガイドライン
3.3.2 Except as set forth in the next paragraph, an Application may
not download or install executable code. Interpreted code may be
downloaded to an Application but only so long as such code: (a) does
not change the primary purpose of the Application by providing
features or functionality that are inconsistent with the intended and
advertised purpose of the Application as submitted to the App Store,
(b) does not create a store or storefront for other code or
applications, and (c) does not bypass signing, sandbox, or other
security features of the OS.
Apple Developer Program License Agreement (Current)
45. 現在のAppleのガイドライン
3.3.2 Except as set forth in the next paragraph, an Application may
not download or install executable code. Interpreted code may be
downloaded to an Application but only so long as such code: (a) does
not change the primary purpose of the Application by providing
features or functionality that are inconsistent with the intended and
advertised purpose of the Application as submitted to the App Store,
(b) does not create a store or storefront for other code or
applications, and (c) does not bypass signing, sandbox, or other
security features of the OS.
Apple Developer Program License Agreement (Current)
46. 現在のAppleのガイドライン
3.3.2 Except as set forth in the next paragraph, an Application may
not download or install executable code. Interpreted code may be
downloaded to an Application but only so long as such code: (a) does
not change the primary purpose of the Application by providing
features or functionality that are inconsistent with the intended and
advertised purpose of the Application as submitted to the App Store,
(b) does not create a store or storefront for other code or
applications, and (c) does not bypass signing, sandbox, or other
security features of the OS.
Apple Developer Program License Agreement (Current)
47. 現在のAppleのガイドライン
3.3.2 Except as set forth in the next paragraph, an Application may
not download or install executable code. Interpreted code may be
downloaded to an Application but only so long as such code: (a) does
not change the primary purpose of the Application by providing
features or functionality that are inconsistent with the intended and
advertised purpose of the Application as submitted to the App Store,
(b) does not create a store or storefront for other code or
applications, and (c) does not bypass signing, sandbox, or other
security features of the OS.
Apple Developer Program License Agreement (Current)
48. 現在のAppleのガイドライン
3.3.2 Except as set forth in the next paragraph, an Application may
not download or install executable code. Interpreted code may be
downloaded to an Application but only so long as such code: (a) does
not change the primary purpose of the Application by providing
features or functionality that are inconsistent with the intended and
advertised purpose of the Application as submitted to the App Store,
(b) does not create a store or storefront for other code or
applications, and (c) does not bypass signing, sandbox, or other
security features of the OS.
Apple Developer Program License Agreement (Current)
53. 同様のサービスは??
“This includes any code which passes arbitrary parameters to
dynamic methods such as dlopen(), dlsym(), respondsToSelector:,
performSelector:, method_exchangeImplementations(), and
running remote scripts in order to change app behavior or call
SPI, based on the contents of the downloaded script. Even if the
remote resource is not intentionally malicious, it could easily be
hijacked via a Man In The Middle (MiTM) attack, which can pose a
serious security vulnerability to users of your app.”
https://forums.developer.apple.com/thread/73640
54. 同様のサービスは??
“This includes any code which passes arbitrary parameters to
dynamic methods such as dlopen(), dlsym(), respondsToSelector:,
performSelector:, method_exchangeImplementations(), and
running remote scripts in order to change app behavior or call
SPI, based on the contents of the downloaded script. Even if the
remote resource is not intentionally malicious, it could easily be
hijacked via a Man In The Middle (MiTM) attack, which can pose a
serious security vulnerability to users of your app.”
https://forums.developer.apple.com/thread/73640
55. 同様のサービスは??
“This includes any code which passes arbitrary parameters to
dynamic methods such as dlopen(), dlsym(), respondsToSelector:,
performSelector:, method_exchangeImplementations(), and
running remote scripts in order to change app behavior or call
SPI, based on the contents of the downloaded script. Even if the
remote resource is not intentionally malicious, it could easily be
hijacked via a Man In The Middle (MiTM) attack, which can pose a
serious security vulnerability to users of your app.”
https://forums.developer.apple.com/thread/73640
73. 2. App Center CLIをインストール
$ appcenter login
?
Opening your browser...?
? Visit https://appcenter.ms/cli-login?hostname=xxx.local and
enter the code:?
? Access code from browser:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Logged in as xxxxxxxx
74. 2. App Center CLIをインストール
$ appcenter codepush deployment list -a <ORG>/<APP>?
!""""""""""""#"""""""""""""""""""""""""""""""""""""""$?
% Name % Key %?
&""""""""""""'"""""""""""""""""""""""""""""""""""""""(?
% Staging % xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx %?
&""""""""""""'"""""""""""""""""""""""""""""""""""""""(?
% Production % xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx %?
)""""""""""""*"""""""""""""""""""""""""""""""""""""""+
77. 3. React Native Client SDKをインストール
$ react-native link react-native-code-push
...
? What is your CodePush deployment key for Android (hit <ENTER>
to ignore)
...
? What is your CodePush deployment key for iOS (hit <ENTER> to
ignore)