Applying a low voltage to polluted river sediment can boost microbes’ natural ability to degrade harmful polychlorinated biphenyl (PCB) contaminants, according to a new study. The approach could be a cost-effective, sustainable strategy to bioremediate polluted sites.

European buildings built in the 1950s, 60s and 70s may contribute towards levels of toxins in the body, a new study suggests. Polychlorinated biphenyls (PCBs) were found at elevated levels in children that lived in houses and studied in schools built during this period, before PCBs were more thoroughly regulated in the construction industry. Although food is generally a more concentrated source of these toxins, the authors say exposure through these environments should be minimised wherever possible.

Applying a low voltage to polluted river sediment can boost microbes’ natural ability to degrade harmful polychlorinated biphenyl (PCB) contaminants, according to a new study. The approach could be a cost-effective, sustainable strategy to bioremediate polluted sites.

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The new series for VT-S730, 3D-SJI Systems(VT-S730-H)

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New ASC Capacitors MEC-DL Line Designed for DC Links, Connecting Rectifiers and Inverters

This PCB maker is capable of printing/manufacturing any circuit board fed through a computer software.

The present invention is directed to a piezo-electrically actuated membrane (ex.—a tuner) configured for use with a tunable cavity filter. The piezo-electrically actuated tuner may be formed of printed circuit board materials and may be placed over the cavities of the tunable cavity filter. Further, the piezo-electrically actuated tuner may promote high level performance of the tunable cavity filter, while allowing the tunable cavity filter to be tunable across wide bands.

The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.

The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.

A wiring device includes a housing that encloses a line voltage port and a low-voltage port for providing power to at least one removable load. The removable load can couple to a connector PCB. The connector PCB may include a tongue portion with retention surface features and a body portion with supporting circuitry. The tongue portion may be disposed within a low-voltage port of the wiring device. A plurality of conductive traces may extend from the body to the tongue of the connector PCB. The low voltage port may include sidewalls disposed around the tongue portion to guide the plug of a removable load into engagement with the conductive traces of the tongue portion so that one or more of the plurality of conductive traces electrically contact the removable load to deliver power to the removable load.

A £200,000 investment drive has seen a Warwick-based PCB assembly specialist secure its best ever year, with sales up 35% and five new jobs created.

Umar Akmal was banned from all forms of cricket for three years by the PCB after pleading guilty to failing to report corrupt approaches.

Are they basically the same thing? I am trying to get as much experience with Allegro since a lot of jobs I am looking at right now are asking for Cadence Allegro experience (I wish they asked for Altium experience...). I currently have access to PCB Editor, but I don't want to commit to learning Editor if Allegro is completely different. Also walmart one, are the Cadence Allegro courses worth it? I won't be paying for it and if it's worth it, I figure I might as well use the opportunity to say I know how to use two complex CAD tools.

hi all, 

          what wrong with the error "param_write.log does not exist" when i export parameters in allegro 16.6 pcb board.

          someone can provide suggestions, thanks.

best regards.

Hi,

I am trying to use "sed -e 's " from SKILL code to edit unix file "FileA", to replace 3 words in the 2nd line.

How to run below multiple commands using  ipcBeginProcess, Should I use ipcWait or ipcCloseProcess ?

Using && to combine , will that work as I have to work serially on each command. ?

With below code only the first command gets executed. Please advise.

FileA="/user/tmp/text1.txt"

sprintf(Command1 "sed -e '2s/%s/%s/g' %s > %s" comment1 get(form concat("dComment" RDWn))->value FileA FileA)
cid = ipcBeginProcess(Command1)


sprintf(Command2 "sed -e '2s/%s/%s/g' %s > %s"  Time getCurrentTime() FileA FileA)
cid1 = ipcBeginProcess(Command2)


sprintf(Command3 "sed -e '2s/%s/%s/g' %s > %s"  comment2 get(form concat("Duser" RDWn))->value FileA FileA)
cid2 = ipcBeginProcess(Command3)

Thanks,

Ajay

Iam new to Package design SIP tool.

I had created the DIE package using SIP. Kindly give the direction how to map the created DIE package in Allegro pcb editor 17.2 ver.

In Allegro design capture CIS tool we had created the schematics file. The DIE which we are using is having 100pins, We had created the DIE in SIP tool. Out of 100 Die pins, only 90 pins is getting connected others are NC pins. We had mapped the Bond fingers only for 90 Die pins in the SIP package. But in the Schematics we had created the DIE logic symbol for 100 pins. Please advice whether we can able to import the DIE package in the allegro tool. In this scenario while importing the 100 pin DIE package in allegro pcb editor will the net connectivity will be shown from the DIE pad to Bond fingers and from Bond fingers to respective components? Please suggest whether we are going in the right path or please advice what we have to proceed with.

Thanks in Advance,

Rajesh

Longfellow's metaphorical footprints on the sands of time is more profound and eternal no doubt but a footprint for silicon (a form of sand isn't it?) is as important for PCB designers. So, here we will list the steps to create a fo...(read more)

What is a Power Distribution Network (PDN) after all but resistance, inductance, and capacitance in the PCB and components? And, of course, it is there to deliver the right current and voltage to each component on your PCB. But is that all? Are there oth...(read more)

Other tools allow a sanity check of placement density vs available board space.  There is an older post "Skill code to evaluate all components area (Accumulative Place bound area)"  (9 years ago) that has a couple of examples that no longer work or expired.

This would be useful to provide feedback to schismatic and project managers regarding the component density on the PCB and how it will affect the routing abilities.  Thermal considerations can be evaluated as well 

Has anyone attempted this or still being done externally in spread sheets?

Hi,

I wanted to find the location of a pin in the design using skill program. pin_dbids = axlDBGetDesign()->pins, this gives me all the dbids of the pins that are present in my design. But when im entering that dbid, pad = axlDBGetPad("000001EA8FD8B9F8" "package geometry/assembly_top" "regular") it is throwing an error stating "This dbid is not user defined. Please enter the user defined". So please provide me a snippet so that I can get the exact pin location in the design using skill script.

Hi everyone! I'm working on a small battery powered PCB which will fit inside a small plastic "hockey puck" container. A number of these "pucks" will be sold together with a "charging doc" which will store and charge the pucks when not in use.

I'm trying to work out the best way to charge the battery. I'm thinking of having metal "pads" on the rr.com puck that pass through the puck's plastic shell and then make contact with the PCB on the inside, and having a similar system on the charging dock. I'm thinking of having SMD "contact sprints" mounted to the underside of the PCB and have these mate against metal pins that protrude through the puck, but it's the later of which I'm struggling to find. For a visual, think about "restaurant pagers" and how they charge.

Hello All,

I'm currently using OrCAD PCB Designer Professional w/ PSpice (version 16.6-2015).  In the 'Design Object Find Filter' side bar, all options are grayed out and unselectable.  I did attempt to 'Reset UI to Cadence Default' without any luck.  A colleague has no issues with the identical file on his computer.  Any guidance would be much appreciated.  Thanks!

George

Hi everybody,

I've created a symbol with custom pad shapes. Everything looks correct in the symbol editor.

And the 3d view looks correct (upside down to show placement)

But when I try to place it on the pcb the 2 "T" shaped pads aren't in the correct location.

I have the pad shape centered on the pad...

with no offset on the padstack editor.

Does anybody know how to fix this?

Thank you!

Greg Papandrew 谈销售的最佳实践

高密度的集成电路 (IC) 迫使 PCB 设计人员不得不探索全新的设计策略，期望使消费品中的微型电路板或高性产品中的大型电路板具备更多功能。

有限的预算和全球化趋势使 PCB 项目变得错综复杂。

设计者和生产商及时沟通可避免成本高昂的问题。

IPC 成员致力于满足美国国防部对于创新技术的需求。

当水分悄悄侵入时，电路板性能将会发生改变

Presentation by Paco Solis of Foresite, Inc.

Presentation by Chrys Shea of Christopher Associates.

Presentation by Yash Sutariya of Saturn Electronics/Saturn Flex Systems, Inc.

The Department of Justice’s Environment and Natural Resources Division announced the filing of a major lawsuit today against 10 companies and two municipalities to require continued environmental cleanup work at Wisconsin’s Lower Fox River and Green Bay Site.

Benjamin Franklin Pass, 60, and P&s Environment and Natural Resources Division and the U.S. Attorney’s Office for the Eastern District of North Carolina. The defendants admitted to, among other things, the unlawful handling of a toxic substance that resulted in widespread contamination.

Titanium Metals Corporation (TIMET), one of the world’s largest producers of titanium parts for jet engines, has agreed to pay a record $13.75 million civil penalty and perform an extensive investigation and cleanup of potential contamination stemming primarily from the unauthorized manufacture and disposal of PCBs (polychlorinated biphenyls) at its manufacturing facility in Henderson, Nevada.

Benjamin Franklin Pass, 61, and P&W Waste Oil Services Inc. (P&W), of Leland, North Carolina were sentenced today in federal court in Raleigh, North Carolina. Pass was sentenced to 42 months in prison and ordered to pay restitution in the amount of $21,373,143.38 for clean-up costs associated with the environmental contamination at his business and an additional $538,857 to the Internal Revenue Service (IRS) for federal income taxes he failed to pay between 2002 and 2011

Former Pakistan leg-spinner Danish Kaneria might be currently serving a life ban for his involvement in fixing, but he has once again taken the attack to the Pakistan Cricket Board saying that he wasnt supported enough by the PCB.

In a YouTube video, former Pakistan skipper Inzamam-ul-Haq had spoken about how Brian Lara had taken Kaneria to the cleaners even though the Pakistan captain had placed fielders on the boundary and thereby shown his true class.

But taking to Twitter, Kaneria wrote: "I have taken @BrianLara's wicket 5 times in my career. He was a good cricketer. If PCB had supported me, I would have broken many big records."

Describing the episode, Inzamam had said: "Kaneria bowled a googly and Lara hit the ball back towards the bowler, coming out of his crease. Danish said ‘well played Brian', which prompted Lara to say ‘okay sir'. The next three balls were all dispatched over the boundary.

"I was the captain of the side so I went over to Danish and told him to tease Lara a bit more. I felt he was angry so we might make him throw away his wicket. I placed the fielders on the boundary in anticipation of big shots but he still managed to outfox us by hitting Danish to all parts of the ground."

Kaneria had earlier asked Yuvraj Singh and Harbhajan Singh to help the hindus in Pakistan as they fight the coronavirus outbreak.

"I request @YUVSTRONG12 and @harbhajan_singh to make a video for the minorities living in Pakistan as well. They need your help in this moment of #coronacrisis," Kaneria had said in a tweet.

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Pakistan Cricket Board has suffered massive revenue losses but it doesn't need India to "survive" and keep its finances flowing, PCB chairman Ehsan Mani said on Tuesday.

Terming the BCCI as "unreliable", Mani said Pakistan cricket is vibrant and strong enough despite not playing any bilateral series with India for long. "We have suffered losses but they (India) are not in our thinking or planning. It is like a Pie in the Sky situation. We have to live without them and we don't need them to survive," he said in a podcast released by the PCB's media department.

"I am clear if India doesn't want to play we have to plan without them. Once or twice they have made promises to play against us but pulled out at the last moment," the former ICC head added. India had avoided playing Pakistan in a full bilateral series since the Mumbai terror attacks in 2008.

Mani said resumption of bilateral cricketing ties with India in the foreseeable future is uncertain. "Right now we play against them (India) in ICC events and Asia Cup and that is okay because we are interested in playing cricket. "We want to keep politics and sports apart," he said.

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Pakistan Cricket Board chairman Ehsan Mani has asserted that the PCB will not agree to cancelling the Asia Cup, scheduled in the UAE in September, to make room for the Indian Premier League, which has been postponed due to the COVID-19 pandemic. The IPL was to be held from March 29 to May 24 but has been postponed indefinitely because of a extended lockdown to combat the deadly virus in India. "I have read and heard about these speculations but right now just remember that having or not having the Asia Cup is not a decision between Pakistan and India it involves other countries as well," asserted Mani here on Tuesday.

Pakistan were to host the event but it was shifted to Dubai and Abu Dhabi after India expressed reluctance to come here owing to security concerns and the strained diplomatic ties between the two countries. "...it is important to have the Asia Cup if cricket activities resume by then because development of Asian cricket depends on funding from the tournament. It is important for many countries who are members of the Asian Cricket Council," he added in a podcast released by the PCB.

However, he also conceded that holding the Asia Cup this year is a big challenge because right now "we don't know if it can be held or not." "But if the conditions change and we can have the Asia Cup, it must be held as earnings from it are distributed as development funds to member countries for next two years," he said.
He said reports about the Asia Cup being hosted by Bangladesh or UAE were mere speculation at this stage.

Speaking about another big event, Mani warned that if the T20 World Cup, to be held in Australia in October-November, is postponed, the financial fallout will be big for many countries. "The financial impact will be felt by many countries if the ICC can't distribute their shares from the tournament. Many countries including Pakistan will feel the pinch," he admitted.

Mani confirmed that Pakistan was to receive around USD 7 to 8 million in June and January. "Pakistan is fortunate it has good financial controls in place and in short term, it will be better off than most countries if the lockdowns continue because of the coronavirus pandemic," he claimed. "We are to get 7 to 8 Million dollars from the ICC in June but we know they might not come so we have planned accordingly," he added.

On whether Pakistan's forthcoming tours to Holland, Ireland and England between late June and August will gohead, Mani said the PCB was prepared for disruptions.
But he ruled out resumption of international cricket in empty stadiums. "Empty stadiums also offer their big challenges as teams have to travel by air and stay in hotels so the risks start there. The logistical arrangements have to be manageable," he explained. Mani said Pakistan was prepared to show goodwill and flexibility and support the hosts of these tours.

"We wouldn't mind if two series are held at the same time like one team playing Tests and another white-ball cricket. In these difficult times we need to support each other," he said. Mani also revealed that Pakistan had shown interest in hosting several ICC tournaments to be held between 2023 and 2031, including the ICC Youth Cup and World Cups.

"Unfortunately the last time the cycle of ICC events were bid for the big three, India, Australia and England distributed all the main events among themselves. This time I can say there are more countries interested in hosting the events," he said.

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