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Archive for the ‘Home Metal Casting’ Category

DON’T TRY THIS AT HOME!!!!!  An overview of my aluminum foundry. Only cost me about $30 bucks at Ace Hardware. Got some scrap aluminum at a welding yard for free and tried to mold them into ingots using a wal-mart muffin pan.

Aluminum Pour in a Home Built Foundry

COPPER TUBE PRODUCING BY CONTINUOUS CASTING OF MOTHER TUBE BY HORIZONTAL CONTINUOUS CASTING , SURFACE MILLING, ROLLING , DRAWING, ANEALING, copper melting, casting,continous casting, extrusion, wire drawing , cable, copper ,alluminium, brass , winding wire , continuous extrusion, upcasting, hydrolic draw bench, horizontal continous casting , copper rod, copper tube, copper strip, copper & alluminium processing machinerETC

What Can Cast Iron Be Used For?

Cast Iron is used throughout the home, garden and various industrial capacities. It is one of the most durable metals and is exceptionally fire proof. This type of iron gets its name because of the moulding technique that is used; this is where the metal is melted down and poured into casts to mould its shape.

Historically, this type of iron was first used in China where pots and ploughshares were made by pouring iron into moulds. These were then used as weapons and tools or even on a larger scale the Chinese used it as a material when building their pagodas. However it wasn’t until the early 18th century when this technique became popularised by the ever advancing western civilisations.  

When constructing bridges and buildings, this metal became the preferred choice for many developers. However when some of these bridges collapsed that people began to realise, that whilst this material was durable, it was very brittle when pressure is applied.

As more was learned about this material, it was quickly realised it can be used to make durable products that are long lasting within numerous conditions. Not only that, but when heated, they produced an even heat throughout the material.       

Knowing this, it started to be used for tools to help with labour such as cutting food crops and cooking food. Therefore, it became incredibly popular to produce materials such as homeware products and garden ware items. Now there is a huge demand for an ever-increasing range of products in all markets and for all purposes.   

Cast Iron Homeware

The first place where products made out of this metal are popular is the kitchen. Cast Iron cookware is very popular because of its longevity and the way the heat spreads evenly throughout the product, allowing for efficient cooking. For example, you can use a range of skillets, griddles, square griddle pans, chappati pans, flat grill pans, hot plates, casserole dishes, sizzlers, woks, tanginess, etc. The list is endless but the most traditional products are the skillets and griddle pans.

In other rooms of the home, multiple products can be seen. For example there are traditional clothes airers or Victorian clothes airers. These are incredibly effective and stylish ways to dry clothes by using a number of wooden slats that are held together using cast iron ends. These are then suspended high up towards the ceiling where hot air gets trapped.

More conventional products around the home include cast iron door handles and door knobs, hinges for doors and cast iron door stops. Considering it’s a heavy and durable material, using them as door stops, handles and hinges is a great idea. 

Cast Iron Gardenware

You can also find products in the garden; these are well admired as they look incredibly stylish and are long lasting. The most notable pieces of cast iron gardenware include things such as cast iron brackets to hang baskets and flower pots. Not only are these sturdy and practical, they can also be aesthetically pleasing, and complement hanging baskets exquisitely.

Next there are garden taps and cast iron garden benches, tables and chairs. In fact cast iron garden furniture is proving to be something of a godsend for garden lovers, as it can hold out the summer months and rarely needs to be put away, as opposed to wooden furniture which is more delicate. Any piece of garden furniture using this material can enhance your outdoor living space.

Finally, for finishing touches, there are quirky items for the outdoors such as iron weathervanes and sun dials that add a certain panache to your outdoors. Not only that but there are even cast iron post boxes; these look very stylish and with an extensive range of different stylish, you’ll be sure to find one that suits your tastes.

Find More Home Metal Casting Articles

This will be a multi part video on foundry pattern making. A wooden pattern is used to make an impression in the sand mold. A silica sand core is inserted to produce the cylinder bore in the casting. A wooden pattern of the cylinder is turned on the Clausing lathe.

A great addition to your home- Metal Porch Swing

A porch is usually the favorite spot of many in a household. Be it for self reflection, curling up with a book in the warm sunshine or simply having a heart to heart with a friend, the porch is the obvious choice. it is especially great if your porch has a metal porch swing. These swings make any experience on the porch better and bigger!

You can get two normal styles when it comes to metal porch swings. One is the suspended swing and the other is the free standing one. Both are inherently the same, with just a few differences. They are both durable, resilient to harsh weather conditions, require minimum spending on maintenance (if compared to wooden swings) and will be with you for a long time. Hence it is an investment worth making.

The suspended porch swings are traditional in nature. Conventionally, the finish was always cast iron, but now a number of different finishes, like the electroplate are available. These swings may also have springs that increase your comfort level and give you a ride with no bumps or jerks.

Although it is harder to install this one, it is easier to assemble. Everything you will need to install it comes with it. This swing comes in various weight capacities. Therefore, while getting, see whether the 400 pounds suits you or any other.

On the other hand, the free standing swing, as the name suggests, supports itself and does not need to be attached. When you buy this, you get the suspension frame along with the swing platform. Although this is a standard swing, you still get a lot of choice in this. You can select from numerous colors, materials and designs. You can even get the latest metal and fabric swings too. Another thing about this swing is that if you use your porch for multiple purposes, you can always pick up this swing and place it elsewhere when not in use!

This swing is available for you in tubular steel, cast iron, classic cast iron and also in lightweight aluminum. There are various styles too, ranging from a scrolled cast copy to one resembling modern lawn chairs.

Terrestrial Trunked Radio – China Machined Parts – Metal casting

Description
The common mode of operation for them is in a group calling mode in which a single button push will connect the user to the users in a selected callgroup and/or a dispatcher. It is also possible for the terminal to act as a one-to-one walkie talkie but without the normal range limitation since the call still uses the network. If enabled by the Subscriber Management TETRA terminals can act as mobile phones (cell phones), with a full-duplex direct connection to other TETRA Users or the PSTN. Emergency buttons, provided on the terminals, enable the users to transmit emergency signals, to the dispatcher, overriding any other activity taking place at the same time.
TETRA uses Time Division Multiple Access (TDMA) with four user channels on one radio carrier and 25 kHz spacing between carriers. Both point-to-point and point-to-multipoint transfer can be used. Digital data transmission is also included in the standard though at a low data rate.
TETRA Mobile Stations (MS) can communicate Direct Mode or using Trunked infrastructure (Switching and Management Infrastructure or SwMI) made of TETRA Base Stations (TBS). As well as allowing direct communications in situations where network coverage is not available, Direct Mode or DMO also includes the possibility of using one (or a chain) of TETRA terminals as relays for a signal. This functionality is called DMO gateway (from DMO to TMO) or DMO Repeater (DMO to DMO). In Emergency situations this feature allows direct communications underground or in areas of bad coverage.
In addition to voice and dispatch services, the TETRA system supports several types of data communication. Status messages and Short Data Services (SDS) are provided over the system’s main control channel, while Packet Data or Circuit switched data communication uses specifically assigned traffic channels.
TETRA provides Authentication Mechanisms of Terminals towards Infrastructure and vice versa. For protection against eavesdropping, over the air encryption and end-to-end encryption is available. Advantages of TETRA
The main advantages of TETRA over other technologies (such as GSM) are:
the much lower frequency used gives longer range, which in turn permits very high levels of geographic coverage with a smaller number of transmitters, thus cutting infrastructure costs.
High spectral efficiency – 4 channels in 25 kHz and no guard bands, compared to GSM with 8 channels in 200 kHz and guard bands.
very fast call set-up – a one to many group call is generally set-up within 0.5 seconds (typical less than 250 msec for a single node call) compared with the many seconds (typically 7 to 10s) that are required for a GSM network.
Works at high speeds >400 km/h. TETRA was used during the French TGV train speed record on 3 April 2007 at 574.8 km/h.
the system contains several mechanisms, designed into the protocols and radio parameters, to ensure communication success even during overload situations (e.g. during major public events or disaster situations), thus calls will always get through unlike in cellular systems. The system also supports a range of emergency calling modes.
TETRA infrastructure is usually separate from (but connected to) that of the public (mobile) phone networks, resulting in (normally) no call charges for the system owners, substantially more diverse and resilient communications and it is easy to customise and integrate with data applications (vehicle location, GIS databases, dispatch systems etc).
unlike most cellular technologies, TETRA networks typically provide a number of fall-back modes such as the ability for a base station to process local calls. So called Mission Critical networks can be built with TETRA where all aspects are fail-safe/multiple-redundant.
in the absence of a network mobiles/portables can use ‘direct mode’ whereby they share channels directly (walkie-talkie mode).
gateway mode – where a single mobile with connection to the network can act as a relay for other nearby mobiles that are out of range of the infrastructure.
TETRA also provides a point-to-point function that traditional analogue emergency services radio systems did not provide. This enables users to have a one-to-one trunked ‘radio’ link between sets without the need for the direct involvement of a control room operator/dispatcher.
unlike the cellular technologies, which connect one subscriber to one other subscriber (one-to-one) then TETRA is built to do one-to-one, one-to-many and many-to-many. These operational modes are directly relevant to the public safety and professional users.
TETRA supports both air-interface encryption and End-to-end encryption
Rapid deployment (transportable) network solutions are available for disaster relief and temporary capacity provision.
Equipment is available from many suppliers around the world, thus providing the benefits of competition
Network solutions are available in both the older circuit-switched (telephone like) architectures and flat, IP architectures with soft (software) switches.
Further information is available from the TETRA Association (formerly TETRA MoU) and the standards can be downloaded for free from ETSI. Disadvantages of TETRA
Its main disadvantages are:
requires a linear amplifier to meet the stringent RF specifications that allow it to exist alongside other radio services.
handsets are more expensive than cellular (about 750 EUR in 2003, about 600 EUR in 2006). This is due to the more difficult technology, smaller economies of scale, and different business model (eg: need for security, high powers and robustness). However cheaper than main (PMR) *competitor technology APCO-16 where prices are >00 per handset. TETRA prices expected to fall further as far eastern manufacturers start production in 2007.
data transfer is efficient and long range (many km), but slow by modern standards at 7.2 kbit/s per timeslot (3.5 kbit/slot net packet data throughput), although up to 4 timeslots can be combined into a single data channel to achieve higher rates whilst still fitting into a single 25 kHz bandwidth channel. Latest version of standard supports 115.2 kbit/s in 25 kHz or up to 691.2 kbit/s in an expanded 150 kHz channel.
due to the pulsed nature of TDMA employed by the protocol and higher powers than cellular, handsets (only) can sometimes interfere with badly designed (usually old) or sensitive electronic devices such as broadcast (TV) receivers. This has prompted some concerns from users of sensitive devices such as heart pacemakers but there are no documented reports of problems even though used regularly by many ambulance crews. As a precaution, users of these equipments should take care with any RF transmitting equipment when used in close proximity (e.g. < 1 metre distance.) TETRA Usage
The TETRA-system is in use by the public sector in the following countries
Continent
Country
Name
Agency
Status
Asia
Pakistan
Ministry of Interior
Police
In use Nationwide
India
Military College of Telecommunication Engineering (MCTE)
Indian Army
In use since 2004 at Mhow, Indore, Madhya Pradesh
AD100.
Kerala Police.
In use by police – Trivandrum city.
Taiwan
[]http://zh.wikipedia.org/wiki/
Taiwan Railways Administration,Railway Police Bureau
In use.
Israel
Mountain Rose.
Israel Defense Forces (IDF).
In use by IDF, country-wide.
Hong Kong
EADS TETRA Terminals
2008 Beijing Olympics and Paralympic Games (Hong Kong Equestrian Event)
Used from July 2008 to October 2008
Hong Kong Fire Services Department
Fire Service, Ambulance
In use.
Hong Kong Police Force
Police
In use.
Mass Transit Railway (MTR)
Transport
In use.
Hong Kong International Airport (HKIA)
Transport
Live from Feb 2009
Macao
Melco-Crown Entertainment
Casino-Hotels: Altira (formerly Crown Macau), and City of Dreams
In use since 2007.
Foras de Segurana de Macau
All Emergency Services
In use.
Africa
Sudan
Ministry of Interior
Police
In use Nationwide
Europe
Belgium
A.S.T.R.I.D
Austria
Police, Fire, Ambulance, Local Train Company
In use in all states except Tyrol and Vorarlberg (still roll-out)
Britain
Airwave
Police, Fire, Ambulance, Armed Forces, Highways Agency
In use by police all over the country.
Denmark
SINE
Police, Fire, Ambulance
Nationwide roll-out in progress
Ireland
TETRA Ireland
Garda, Fire, Ambulance, Defence Forces, Civil Defence, Security of State services
Nation-wide roll-out network
Italy
Rete Interpolizie
Polizia di Stato (Italian State Police), the Carabinieri (Military Police), the Guardia di Finanza (Customs Police), the Polizia Penitenziaria (Prison Police) and for the Corpo Forestale Italiano (Italian Forest Brigades)
Roll-out
Finland
VIRVE
Police, Fire, Ambulance, Customs, Defence Forces, Border guard
Nation-wide network
HelenNet
Helsingin Energia (One of the largest energy companies in Finland), Security guards (Mostly at shopping malls, train/metro stations and trams), Helsinki’s public transport
In use.
Estonia
[[ ]]
Police, Fire, Ambulance, Customs
Roll-out
Greece
C4I
Police, Fire, Coast Guard
Attica region
OTE
Airport, Metro, Security, Transportation, Taxi, Utilities, etc
Nation-wide Public Network
Latvia
Ventamonjaks Serviss Ltd, Ventspils Oil & Gas
In use since 2007.
Netherlands
C2000
Police, Fire, Ambulance
Nation-wide network
Norway
Ndnett
Police, Fire, Ambulance, Search and Rescue
Roll-out
Morocco
ADM
Highway authority
Roll-out
Sweden
RAKEL
Police, Fire
Roll-out
Portugal
SIRESP
Police, Fire, Ambulance
Nation-wide Roll-out in use since 2007
Romania
STS (Special Telecommunications Service)
Police, Fire, Search&Rescue
Nation-wide
Middle East
United Arab Emirates
Nedaa
Police, emergency services, professional communications
Dubai, Sharjah, Ajman, Umm Al-Qaiwain, Ras Al-Khaimah, Fujairah operational
Polikom
Police, emergency services, professional communications
Abu Dhabi Radio Frequencies
In South America, TETRA uses frequencies:
Emergency Systems
Number
Frequency Pair (MHz)
Band 1
Band 2
1
380-383
390-393
2
383-385
393-395
Civil Systems
Number
Frequency Pair (MHz)
Band 1
Band 2
1
410-420
420-430
2
870-876
915-921
3
450-460
460-470
4
385-390
395-399.9 Radio aspects
To send information TETRA uses a digital modulation scheme known as /4 DQPSK, this is a form of phase shift keying. The symbol (baud) rate is 18,000 symbols per second, and each symbol maps to 2 bits, thus resulting in 36,000 bit/s gross. As a form of phase shift keying is used to transmit data during each burst, it would seem reasonable to expect the transmit power to be constant. However it is not. This is because the sidebands, which are essentially a repetition of the data in the main carrier’s modulation, are filtered off with a sharp filter so that unnecessary spectrum is not used up. This results in an amplitude modulation and is why TETRA requires linear amplifiers. The resulting ratio of peak to mean (rms) power is 3.65 dB. If non-linear (or not-linear enough) amplifiers are used, the sidebands re-appear and cause interference on adjacent channels. Commonly used techniques for achieving the necessary linearity include cartesian loops, and adaptive predistortion.
The base stations normally transmit continuously and (simultaneously) receive continuously from various mobiles – hence they are Frequency Division Duplex. TETRA also uses TDMA (see above). The mobiles normally only transmit on 1 slot/4 and receive on 1 slot/4 so they are both Time Division and Frequency Division Duplex.
Speech signals in TETRA are sampled at 8 kbit/s and then compressed with a vocoder using a technique called ACELP (Adaptive Code Excited Linear Prediction). This creates a data stream of 4.567 kbit/s. This data stream is error-protection encoded before transmission to allow correct decoding even in noisy (erroneous) channels. The data rate after coding is 7.2 kbit/s – the capacity of a single traffic slot when used 17/18 frames.
A single slot consists of 255 usable symbols, the remaining time is used up with synchronisation sequences and turning on/off etc. A single frame consists of 4 slots, and a multiframe (whose duration is 1.02 seconds) consists of 18 frames. Hyperframes also exist, but are mostly used for providing synchronisation to encryption algorithms.
The downlink (i.e. the output of the base station) is normally a continuous transmission consisting of either specific communications with mobile(s), synchronisation or other general broadcasts. All slots are usually filled with a burst even if idle (continuous mode). Although the system uses 18 frames per second only 17 of these are used for traffic channels, with the 18th frame reserved for signalling, Short Data Service messages (like SMS in GSM) or synchronisation. The frame structure in TETRA (17.65 frames per second = 18 frames in 1.02 seconds), consists of 18000 symbols/s / 255 symbols/slot / 4 slots/frame, and is the cause of the perceived “amplitude modulation” at 17 Hz and is especially apparent in mobiles/portables which only transmit on one slot/4. They use the remaining three slots to switch frequency to receive a burst from the base station two slots later and then return to their transmit frequency (TDMA). Cell Re-Selection (or Hand-over) in Images
RSSI SRT FRT Cell Limit (Propagation Delay Exceed)
This first representation demonstrates where the SRT (Slow Reselect Threshold) the FRT (Fast Reselect Threshold) and propagation Delay exceed parameters are most likely to be. These are represented in association with the decaying radio carrier as the distance increases from the TETRA Base Station.
From this illustration, these SRT and FRT triggering points are associated to the decaying radio signal strength of the respective cell carriers. The thresholds are situated so that the cell reselection procedures occur on time and assure communication continuity for on-going communication calls. Initial Cell Selection
Cell Initial Selection
The next diagram illustrates where a given TETRA radio Cell Initial Selection.
The initial cell selection is performed by procedures located in the MLE and in the MAC. When the cell selection is made, and possible registration is performed, the MS (mobile station) is said to be attached to the cell.
The mobile is allowed to initially select any suitable cell that has a positive C1 value, i .e. the received signal level is greater than the Minimum Rx Level for Access parameter.
The initial cell selection procedure shall ensure that the MS selects a cell in which it can reliably decode downlink data, i.e. on a main control channel (MCCH), and which has a high probability of uplink communication. The minimum conditions that shall have to be met are that C1 > 0. Access to the network shall be conditional on the successful selection of a cell.
At mobile switch on, the mobile makes its initial cell selection of one of the base stations, which indicates the initial exchanges at activation.
Refer to EN 300 392 2 16.3.1 Activation and control of underlying MLE Service
Note 18.5.12 Minimum RX access level
The minimum RX access level information element shall indicate the minimum received signal level required at the SwMI in a cell, either the serving cell or a neighbour cell as defined in table 18.24. Cell Improvable
Cell Improvable
The next diagram illustrates where a given TETRA radio cell becomes Improvable.
The serving cell becomes improvable when the following occurs:
The C1 of the serving cell is below the value defined in the radio network parameter cell reselection parameters, slow reselect threshold for a period of 5 seconds, and the C1 or C2 of a neighbour cell exceeds the C1 of the serving cell by the value defined in the radio network parameter cell reselection parameters, slow reselect hysteresis for a period of 5 seconds. Cell Usable
Cell Usable
The next diagram illustrates where a given TETRA radio cell becomes Usable.
A neighbour cell becomes radio usable when the cell has a downlink radio connection of sufficient quality.
The following conditions must be met in order to declare a neighbour cell radio usable:
The neighbour cell has a path loss parameter C1 or C2 that is greater than the following: (FAST_RESELECT_THRESHOLD+FAST_RESELECT_HYSTERISIS) for a period of 5 seconds, and the service level provided by the neighbour cell is higher than that of the serving cell. No successful cell reselection shall have taken place within the previous 15 seconds unless MM requests a cell reselection. The MS-MLE shall check the criterion for serving cell relinquishment as often as one neighbour cell is scanned or monitored.
The following conditions will cause the MS to rate the neighbour cell to have higher service level than the current serving cell:
The MS subscriber class is supported on the neighbour cell but not on the serving cell.
The neighbour cell is a priority cell and the serving cell is not.
The neighbour cell supports a service (that is, TETRA standard speech, packet data, or encryption) that is not supported by the serving cell and the MS requires that service to be available.
The cell service level indicates that the neighbour cell is less loaded than the serving cell. Cell Relinquishable (Abandonable)
Cell Relinquishable
The next diagram illustrates where a given TETRA radio cell becomes Relinquishable (Abandonable).
The serving cell becomes relinquishable when the following occurs: The C1 of the serving cell is below the value defined in the radio network parameter cell reselection parameters, fast reselect threshold, for a period of 5 seconds, and the C1 or C2 of a neighbour cell exceeds the C1 of the serving cell by the value defined in the radio network parameter cell reselection parameters, fast reselect hysteresis, for a period of 5 seconds.
No successful cell reselection shall have taken place within the previous 15 seconds unless MM (Mobility Management) requests a cell reselection. The MS-MLE shall check the criterion for serving cell relinquishment as often as one neighbour cell is scanned or monitored. Radio Down-link Failure
Radio Down-link Failure
When the FRT threshold is breached, the MS is in a situation where it is essential to relinquish (or abandon) the serving cell and obtain another of at least Usable quality. That is to say, the mobile station is aware that the radio signal is decaying rapidly, and must cell reselect rapidly, before communications are terminated because of radio link failure. When the mobile station radio-signal breaches the Rx Lev minimum the radio is no longer in a position to maintain acceptable communications for the user, and the radio link is broken.
Radio link failure: (C1 < 0). Using the suggested values, this would be satisfied with the Serving Cell Level below -105 dBm. Cell reselection procedures are then activated in order to find a suitable radio base station.
Infrastructure TETRA Parametres to be Verified
This table serves only as a guide.
Type of Radio Cover
Parametre
Distance in km
Type of Communication
City
< 4
< 8
Pedestrian / Metro
Sub-Urban
10 to 18
20 to 36
Bus / Train
Countryside
18 to 31
36 to 62
Inter Regional Train
In Air
> 32
> 64
In Flight A Virtual MMI for TETRA radio Terminals
Any given TETRA radio terminal using Java (J2ME /CLDC) based technology, provides the end user with the communication rights necessary to fulfill his or her work roll on any short duration assignment.
For Dexterity, flexibility, and evolution ability, the RATP radio engineering department, have chosen to use the open sources, Java language specification administered by Sun and the associated work groups in order to produce a transport application tool kit. RATP TETRA MMI
RATP-TETRA KVM- MMI
Service acquisition admits different authorised agents to establish communication channels between different services by calling the service identity, and without possessing the complete knowledge of the ISSI, GSSI, or any other TETRA related communication establishment numbering plan. Service acquisition is administered through a communication rights centralised service or roll allocation server, interfaced into the TETRA core network.
In summary, the RATP TETRA MMI aims are to:
Allow any given agent while in exercise, to exploit any given radio terminal without materiel constraint.
Provide specific transportation application software to the RATP end-user agents. (Service Acquisition , Fraud and Aggression control)
This transport application tool-kit has been produced successfully and with TETRA communication technology and assures for the RATP transport application requirements for the future mentioned hereafter.
The Home (Main) menu presents the end user with three possibilities:
a) Service Acquisition,
b) Status SDS,
c) End user parameters
Service Acquisition provides a means of virtually personalising the end user to any given radio terminal and onto TETRA network for the duration the end user conserves the terminal under his / her possession.
Status SDS provides the end user with a mechanism for generating a 440Hz repeating tone that signals a fraud occurrence to colleagues who are currently within the same (dynamic or static) Group Short Subscriber Identity GSSI or to a specific Individual Short Subscriber Identity, ISSI for the duration of the assignment ( an hour, a morning patrol or a given short period allocated to the assignment). The advantage being that each of the end users may attach themselves to any given terminal, and group for short durations without requiring any major reconfiguration by means of radio software programming tools. Similarly, the aggression feature functions, but with a higher tone frequency (880Hz), and with a quicker repetitious nature, so to highlight the urgency of the alert.
The Parameters tab provides an essential means to the terminal end-user allowing them to pre-configure the target (preprogrammed ISSI or GSSI ) destination communication number. With this pre-programmed destination number, the end-user shall liaise with the destination radio terminal or Roll Allocation Server, and may communicate, in the group, or into a dedicated server to which the service acquisition requests are received, preprocessed, and ultimately dispatched though the RATP TETRA core network. This simplifies the reconfiguration or recycling configuration process allowing flexibility on short assignments.
The Parameters tab also provides a means of selecting pre selected tones to match the work group requirements for the purposes of Fraud and Aggression Alerts. A possibility of selecting any given key available from the keypad to serve as an aggression or fraud quick key is also made possible though the transport application software tool kit. The RATP recommend using the Asterisk and the Hash keys for the Fraud and Aggression quick keys respectively. For the fraud and aggression tones the RATP also recommend using 440Hz slow repeating tone (blank space 500 milli-seconds) and 880Hz fast repeating tone (blank space 250 milli seconds) respectively.
The tone options are as follows: 440 Hz 620 Hz, 880Hz, 1060Hz.
The Parameters page on yet another tab provides an Aid or Help menu and finally, the last tab within parameters describes briefly the tool kit the version and the history of the transport application tool kit to date.
Refer also to: JSR-118,
Mobile Information Device Profile, JSR-37,
Wireless Messaging API, JSR120,
Connected Limited Device Configuration JSR-139
Technology for the Wireless Industry JTWI-185: See also
Rohill Provider of TETRA Communication Systems under TetraNode brand
Artevea Provider of TETRA Communication Systems under T-MATRIX brand
EADS Secure Networks, provider of TETRA Networks after it bought Nokia’s PMR business at 2005
Motorola provider of TETRA Networks under Dimetra IP brand
NXDN, a two-way digital radio standard with similar characteristics
P25, a TIA APCO standard used in North America References
^ ETSI EN 300 392-2 v3.2.1
^ http://www.tetra-association.com TETRA Association
^ http://www.eads.net/1024/en/dcs_pmr/products_services/tetra_terminals/tetra_terminals.html
^ http://www.artevea.com/casestudies-detail.php?type=case&id=10
^ http://mediacenter.motorola.com/content/Detail.aspx?ReleaseID=10788&NewsAreaID=2
^ http://www.artevea.com/casestudies-detail.php?type=case&id=12
^ http://www.selex-comms.com/internet/index.php?open0=5&open1=24&section=CORP&showentry=4421 Selex Communications
^ http://www.artevea.com/casestudies-detail.php?type=case&id=11 External links
Rohill TETRA
Artevea TETRA Communication System
EADS TETRA
Motorola Dimetra TETRA Products
A blog about TETRA Security and info
Report on the health effects of TETRA by NRPB
v  d  e
Trunked radio systems
Central controller
Motorola systems: Type I Type II Type IIi Hybrid Type II SmartZone Type II SmartZone OmniLink iDEN
Other: APCO Project 16 APCO Project 25 EDACS EDACS Provoice MPT-1327 OpenSky TETRA TETRAPOL
Scan-based / distributed control
General Electric Mobile Radio: GE Marc V
Logic Trunked Radio: LTR Standard LTR Passport LTR Standard and Passport LTR MultiNet LTR-Net Categories: Trunked radio systems | Mobile telecommunications standards

B & Q China to carry the network Dongpeng – Hydraulic Couplings – Metal casting

At the Fourth China International Architectural Ceramic and sanitary ware exhibition held in Shanghai during the Dongpeng Ceramic supermarket Forum held in Shanghai B & Q and B & Q held Dongpeng Ceramics (China) co-signing ceremony supermarkets (such as the right) Dongpeng and B & Q in the deep levels of powerful alliances, are Dominating the following investment involved in logistics in China Ceramics City has once again on the sale of Chinese ceramics of high-impact collaboration terminal marked Dongpeng full access to B & Q in China’s supermarkets chain in the domestic ceramic industry by the B & Q first aircraft carrier, along with bigger and stronger.
    B & Q is the third in the world, building materials supermarkets in Europe, the Chinese tile purchase Lu explained that B & Q is the first approved by the Chinese government with foreign organizations, building materials, the business has developed rapidly in China, an international building materials supermarkets into China representatives. Last month they opened a shop in Qingdao, will be completed this year, the opening of several regional stores, such as this month on the 2nd store opened in Hangzhou, in May set up shop in Wuhan, Central China the second store, opened in Guangzhou in August at stores and two shop, this will open the 2nd store in Shenzhen, now at B & Q store in Shenzhen, a very good development.
    B & Q so the next major goal is to enter Beijing, will be the next one to two years to open 34 stores in Beijing, development speed is very fast indeed. For the B & Q, the selection of suitable partners is the key to success, B & Q will finance, systems, logistics, stores and other six with the ceramics factory to carry out comprehensive cooperation.
    With B & Q Dongpeng Why cooperate? Chairman Struggles against Dogmatism Dongpeng exclusive interview in Shanghai that the marketing model now ceramic changes, the original single traditional distribution network is gradually being replaced by the new model, one is the rise of supermarkets, the other is canceled After the rough room to increase the share of group purchasing.
    Building materials supermarkets come from abroad, and in a short period of rapid development in 2045, occupy a lot of the retail market. Traditional distribution model the entire industry is under attack, Dongpeng also face this problem, so after careful study, they decided to cooperate fully supermarket giant B & Q, powerful alliances, hoping to use the advantage to boost sales of the supermarket. To enter the supermarket is not an easy thing to do, so they held a forum to learn about the supermarket, laying the foundation for entry into the supermarket. It is reported that Dongpeng Group first with “Dominating” B & Q brand into supermarkets. On entering the supermarket how to protect the interests of distributors, dealers Struggles against Dogmatism that will include the management of the supermarket, so that dealers involved in the operation of supermarkets, such as the interests of supermarket sales will leave the dealer, so as to protect the interests of dealers , to “1 +1> 2″ effect.
    Struggles against Dogmatism in the subsequent further elaborated in his speech, he said, such as title, Nobel, Asia and other Taiwanese brands, some at the supermarket has sold more than its retail sales, but some brands into the supermarket after the result is not large, mainly three reasons, first not meet the strict management of the supermarket, if the price changes at the brand, or the logistics, short delivery can not, and not meet supermarket requirements; the second is the operation of supermarkets The rules do not know, supermarkets within a short time they will get such a big market share, certainly has its special place, so need to understand; Third, the characteristics of the supermarket, characteristics not studied, some of the brand of home square, Cultural Square, easily several thousand square meters of exhibition center, but the supermarket just to give you a small place furnishings, then put what, how to put? Necessary to study the mentality of the consumer. In addition, dealers are fearful of the impact of supermarket growth of their own interests. To solve these problems, into the supermarket does not mean a purpose, only to sell the product be considered as an end. In view of this, Dongpeng will enter the supermarkets of Shanghai as a laboratory, hands-on experience throughout the country after the promotion, so Dongpeng and B & Q on the two sides will reduce the risk.
    Dominating the full access to the international building materials supermarket of the large number of groups is a significant initiative, which from the top of several key leaders Dongpeng enjoy the fun at a signing ceremony could see, however, how successful international cooperation in building materials supermarket giant Tao is also increasingly become the most pressing issues facing enterprises.
    For this cooperation, Struggles against Dogmatism that the supermarket as a new ceramic logistics Format, has its particular side, the need for domestic ceramic enterprises to enter the supermarket to do the following tasks: One asked marketing veterans, dealers, salesmen, etc. must as soon as possible to understand the operation of supermarkets, the same as before the half-comprehended not, supermarkets are facing thousands of families, covering the various brands to look into it, meet it, master it, this will also set up Dongpeng specialized supermarket department, by special people to do special things. The second is to study the characteristics of the supermarket stores, such as placing the main export products, or new products are the main, or other products? It is worth to study; the supermarket is a good promotion place, while showing little space, but also other brand can not be the whole show, which means that all the differences between brands show little, if Dongpeng To not carry out promotions in the supermarket? It is worth to study one aspect of a word as long as a breakthrough to success. Third, how to solve the existing distribution network is the interests of supermarkets, which requires not only to deal with, but also the participation of dealers to participate in the operation of the supermarket, then the dealer and the supermarket “fight” the opportunity will be reduced, in a word into the supermarket aim is to increase sales volume, achieve “1 +1> 2″ effect, not “1 +1 <2.” Fourth, how to improve enterprise management level, to change the arbitrary and do not pay attention to rules of customary, by the rules. Finally, B & Q and supermarket Struggles against Dogmatism also made some suggestions, he said that he hoped to study the local B & Q as the main brand to brand management, support services, local brands, local brands and further research to develop a flexible differentiated human The rules for the local brands, so we join hands with the stronger and larger.

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Space Invaders Extreme 2 – China Sheet Metal Fabrication – Metal casting

Gameplay
Space Invaders Extreme 2 has similar gameplay to its predecessor, such as the switching weapons, Fever Time, chaining, Bingo Fevers, and more. However, there are several changes and new systems in the game: Modes
There are now three modes, Score Attack, Ranking, and the brand-new Time Attack. In Score Attack the idea is to get the most amount of points, while in Time Attack, the idea is to finish as fast as possible. Ranking Mode is still the same as it was in the first game where the player must reach any of the 5-x stages and defeat the final boss without using a continue and not running out of stock.
A new ‘Beginner’ mode has been added to the Score Attack mode. This only allows the player to play through the easiest set of stages in the game with infinite lives.
If you beat every level in Score Attack mode on Normal difficulty, a new difficulty, Extreme, is unlocked. Gameplay in Extreme is much more difficult with harder formations to destroy, brand-new Invader types not seen in Normal difficulty, and harder variations of bosses. Additionally, there are now branching stages for Extreme starting at Stage 4-x. The Bingo system and Fever Time
The Fever system has been changed for SIE2. The general way to get Fever Time is still the same, hit four aliens of the same color and then four more of the same color to send over a flashing UFO, which starts a Round upon being shot. Unlike the first game, SIE2 does not discriminate alien shapes. The player only has to worry about colors.
However, unlike the previous game, the ‘Round’ takes place in the top screen, and can be shot past the top of the bottom screen to reach the other screen. The round is won by eliminating the enemies in the top screen in under 30 seconds, which activates Fever Time.
Fever Time also works differently in SIE2. White UFOs fly around in the top screen, and the normal waves of the current stage (albeit in a gold color) are on the bottom screen. Shooting the UFOs destroys them, and shooting the gold aliens offers gold items. UFOs and gold items destroyed and collected respectively increase your bonus for the Fever Time.
This will fill in a ‘Bingo’ slot. On the top screen, there is a ‘Bingo’ card, with a 3 by 3 pattern. Each square has an internal and external color. If you get to a Fever Time, the slot is filled in (eg, if you hit four red then four green aliens, the red block with green inside is filled in). If the block you fill in is already filled in, it unlocks a bonus not related to the Bingo, such as the Roulette UFO or the Change to UFO bonuses.
Making a line of three blocks on the ‘Bingo’ card unlocks a special Round, and if it is beaten, a special Fever Time occurs, known as Bingo Fever. The UFOs are colored gold as well as the stages’ aliens, and a pink UFO appears which drops a large pink item worth 30,000 points. Regardless of your previous weapon, Bingo Fevers force the player to use the most powerful iteration of the Bomb powerup.
Two lines can also be made at the same time, which enables Two Lines Fever, with 3 pink UFOs per UFO wave. The player will have a special Broad Shot that is double the normal width per shot, having 6 bullets per shot rather than the normal 5.
The last and hardest to achieve Bingo set is Full House Fever, with a giant UFO being blocked by 200pt Invaders, half of which have an unbreakable barrier. If enough damage is accumulated on the giant UFO, you will get a Jackpot, and every time you hit the UFO from that point onwards makes it drop out a pink item. The player has an all-penetrating Laser that’s twice the normal width in the game during this Fever Time. Also, this Fever Time doesn’t last as long if the UFO is not fully damaged within the time limit (not seen).
The Shield powerup is the only Fever Time not to have a Bingo variant. Other changes
There are several new wave patterns, backgrounds, music tracks and bosses in SIE2 as well as a commentator which you hear when the player achieves certain goals. This male voice also serves to provides words of encouragement and congratulations. However, as in a possible throwback to the last game, the first stage background pattern from Extreme 1 is visible in the background in the menu screens.
The amount of points that is required for different ranks has been heightened significantly – however, it is also easier to earn extra points, due to the ‘Rank’ stat now able to reach a x16 level.
Black-colored invaders enable special effects from the previous games’ Roulette, which has fewer effects this time. Shooting the following colors enables a special effect:
Black/Blue: All invaders freeze in place for a short period of time.
Black/Red: All invaders change to UFO. UFO invaders immediately drop any powerup if they are not colored white.
Black/Green: A roulette is started and the player ALWAYS has a chance to earn an extra life or none at all. It is interesting to note that there are frequent occurrences of these two colors showing up in progressively difficult stages. Additionally, if the player is on their final stock and gets a roulette, the roulette wheel changes to have every slot but one to have an extra stock. The remaining slot is a massive point bonus.
A few changes are also made in Multiplayer; If you shoot a Round Feature like you would do in the single player mode, a large UFO will appear on screen. Upon hitting it, it will send the wave along with a large alien. Also, a UFO count is shown in-game, and if that count drops to zero, a flashing UFO will appear on screen randomly. Upon being hit, this will send a giant UFO over at your opponent. The AI used in the ‘VS Com’ mode has also been improved to include multiple difficulties. The background has also been changed. Instead of a black background, artwork for the original Space Invaders can be seen. Also, in certain waves a gold ’200pt’ invader (normally seen in single-player Fever Time) can be destroyed, giving out a gold item. This gives you the Broad Shot from Two-Line Fever. Interesting to point out is that the music played in Multiplayer is taken from the previous game, entitled “Zero Hour”, the music from Stage 5D. References
^ “Space Invaders Extreme 2″. http://www.gamespot.com/ds/action/spaceinvadersextreme2/index.html. 
^ http://www.gamespot.com/ds/action/spaceinvadersextreme2/index.html
^ http://nintendo.joystiq.com/2009/05/08/fever-time-taito-announces-european-release-for-space-invaders/
^ Rumor: Retailers leak Space Invaders Extreme 2, list features
^ http://www.siliconera.com/2009/11/04/taito-ports-space-invaders-extreme-2-to-dsiware/ External links
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Space Invaders series
Arcade
Space Invaders  Part II  II  Return of the Invaders  91  95: The Attack of the Lunar Loonies
Home/handheld
90  2000  X  Space InvaDA!!  EX  DS/Revolution  Gb  Evolution  Extreme  SIGE  Extreme 2  IG  Cubic Invaders  SIIG  SIWW
Compilations
DX  TOG  VC  Space Invaders Anniversary  Pocket  Trilogy
Spin-offs
Space Raiders  Space Invaders X Pac-Man  Yawaraka sensha VS Space Invaders  Minna de Invaders  Logic Invaders  Typingvaders Categories: Taito stubs | Shooter game stubs | 2009 video games | Nintendo DS games | Nintendo DS-only games | Space Invaders | Video game sequels

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