omniomni/omni-engineering huggingface dataset:
K6 (software). K6 is an open-source load testing tool developed by Grafana Labs. It is designed to help developers and engineers test the performance and reliability of their systems, particularly APIs, microservices, and websites. K6 is both an HTTP load and functional test tool, written in Go and using the goja embedded JavaScript interpreter for test scripting purposes. Tests are written in ECMAScript 6 using the Babel transpiler. There is support for HTTP/2, TLS, test assertions, ramp up and down, duration, number of iterations etc. Standard metrics include reports to standard out but can include collectors that report to time-series databases which can be visualized in real-time. There is a Jenkins plugin that can be combined with thresholds (global pass/fail criteria).

Features 
 Developer-friendly: Uses JavaScript for scripting.
 Extensible: Can be extended with various modules and integrations.
 Performance testing: Supports stress, spike, and soak tests.
 Automation-friendly: Integrates with CI/CD pipelines for continuous testing.

History 
K6 was initially released by LoadImpact in 2017. LoadImpact was later rebranded into k6 in 2020. K6 was then acquired by Grafana Labs in 2021. It has since become a popular tool for performance testing in the developer community.

Example and usage 
The below script executes a GET request on the Wikipedia homepage, checks whether the HTTP status code is 200 and if we are using the HTTP/2 protocol. import http from "k6/http";
import { check } from "k6";

export default function() {
  check(http.get("https://www.wikipedia.org/"), {
    "status is 200": (r) => r.status == 200,
    "protocol is HTTP/2": (r) => r.proto == "HTTP/2.0",
  });
}The above test case can be run with the command $ k6 run http_2.js where http_2.js is the filename in which the test case is saved in.

See also 

 Software load testing
 Grafana
 Continuous integration

References

External links 
 
 

Free software testing tools
Software using the GNU Affero General Public License
Free and open-source software
Cross-platform free software
Free software for Linux
Free software for macOS
Free software for Windows
Free software programmed in JavaScript
Free software programmed in Go
Giles Davies. Alexander Giles Davies     is Professor of Electronic and Photonic Engineering at the University of Leeds.

Education  
Davies was educated at the University of Bristol where he was awarded a first-class Bachelor of Science degree in Chemical Physics in 1987. He obtained his PhD in Semiconductor Physics from the University of Cambridge in 1991, where he investigated the fractional quantum Hall effect under the guidance of Sir Michael Pepper.

Research  
Davies is known for his research in terahertz-frequency electronics and photonics. His early work focused on photoconductive techniques for the generation and coherent detection of pulsed terahertz radiation, which helped demonstrate the unique capabilities of terahertz imaging and spectroscopy compared with established analytical methods.

In 2002, Davies jointly coordinated a European consortium that demonstrated the long-sought terahertz frequency quantum cascade laser (QCL), an intra-band solid-state device. He was appointed to his chair at the University of Leeds in the same year.

Awards and honours
Davies was awarded a Royal Society Wolfson Research Merit Award in 2011. In 2014, he was awarded the Institute of Physics Michael Faraday Medal and Prize in 2014 alongside Edmund Linfield for their “outstanding and sustained contributions to the physics and technology of the far-infrared (terahertz) frequency region of the electromagnetic spectrum”. In 2016, Davies was elected Fellow of the Royal Academy of Engineering.

References  

Living people
Alumni of the University of Bristol
Alumni of the University of Cambridge
Fellows of the Royal Academy of Engineering
Fellows of the Institute of Physics
Year of birth missing (living people)
Shelly Sakiyama-Elbert. Shelly E. Sakiyama-Elbert is an American biomedical engineer whose research involves neural stem cell transplantation for neuroregeneration after spinal cord injury.   She is a professor of bioengineering at the University of Washington, and vice dean for research and graduate education in the University of Washington School of Medicine.

Education and career
Sakiyama-Elbert is originally from Southern California. She studied chemical engineering and biology as an undergraduate at the Massachusetts Institute of Technology, graduating in 1996. She went to the California Institute of Technology for graduate study in chemical engineering, earning a master's degree in 1998 and completing her Ph.D. in 2000.

As a faculty member at Washington University in St. Louis, Sakiyama-Elbert co-directed the Center for Regenerative Medicine, and became vice dean for research. She moved to the University of Texas at Austin in 2016 as chair of the Department of Biomedical Engineering and Fletcher Stuckey Pratt Chair in Engineering. In 2022, she moved to her present position at the University of Washington, together with her husband, Alzheimer's disease researcher Donald Elbert.

Recognition
Sakiyama-Elbert is a 2011 Fellow of the American Institute for Medical and Biological Engineering, a 2013 Fellow of the Biomedical Engineering Society, a 2015 Fellow of the American Association for the Advancement of Science, a 2016 Fellow of the International Union of Societies of Biomaterials Science and Engineering, and a 2017 Fellow of the National Academy of Inventors.

She is the 2023 recipient of the Senior Scientist Award (Americas) of the Tissue Engineering and Regenerative Medicine International Society.

References

External links
Sakiyama-Elbert Laboratory

Year of birth missing (living people)
Living people
American biomedical engineers
American women engineers
Women bioengineers
Massachusetts Institute of Technology alumni
California Institute of Technology alumni
Washington University in St. Louis faculty
University of Texas at Austin faculty
University of Washington faculty
Fellows of the American Association for the Advancement of Science
Fellows of the American Institute for Medical and Biological Engineering
Fellows of the Biomedical Engineering Society
Programa Educativo de Colegios Secundarios. The PECOS (Programa Educativo de COlegios Secundarios) was an Argentine computer designed and manufactured by Assiel (later renamed Aswork) for educational purposes. Launched in 1983, around 1500 units were produced for schools in Buenos Aires. It became a key development in Argentina's computing industry alongside the Alpha and Sincorp SBX.

Assiel was the first fully integrated computer manufacturer in Argentina, handling the entire process from design to assembly, unlike other companies that assembled imported parts.

The machine was created based on the article Build Your Own Z80 Computer by Steve Ciarcia in Byte magazine.

The PECOS was primarily sold to educational institutions, which were also using Commodore and MSX machines. PECOS computers supported educational networks where teachers controlled student activities via terminal networks. Schools typically installed networks of up to 10 PECOS units, sharing floppy drives and printers, with software developed by Assiel.

Technical details 
The PECOS was available in two models: PECOS, a 64 KB RAM version for students;  and PRICK, a 128 KB RAM version for teachers.

Powered by a Zilog Z80 microprocessor running at 4 MHz, the system featured an SN76489 audio chip and TMS9928A video controller. The PECOS featured an external power supply, expansion module connectors, and supported optional accessories such as RF modulators and diskette drives.

The operating system used was CP/M, and software included a text editor, spreadsheet, and Micro Logo in Spanish. It also supported multiple programming languages, such as compiled BASIC, Fortran 77, COBOL, and Pascal.

References 

Z80-based computers
Computer-related introductions in 1983
Simukai Utete. Simukai Utete is a Zimbabwean robotics scientist, and was the academic director of the South Africa branch of the African Institute for Mathematical Sciences (AIMS). Her work has focused on multi-robot systems and data fusion.

Early life and education 
Utete attended Balliol College at Oxford University, after being awarded a Rhodes Scholarship. She holds a DPhil in Robotics (Engineering Science).

Career 
For four years, Utete led the Mobile Intelligent Autonomous Systems (MIAS) field robotics group at the Council for Scientific and Industrial Research in Pretoria.

In 1994, she published Routing for Reliability in Decentralised Sensing Networks in collaboration with H.F. Durrant—Whyte. This was a conference paper that focused on management and configuration in decentralized sensing networks. The paper demonstrated that it was possible to overcome local failures and reallocate tasks while still maintaining system constraints.

In 1998, she published Local Information Processing for Decision Making in Decentralised Sensing Networks, a conference paper focused on the use of local information processing in decision making in decentralized sensor systems. The article described the problems that can arise from this system when the nodes receive inconsistent information.

In 1999, in collaboration with Billur Barshan and Birsel Ayrulu, she published Voting as Validation in Robot Programming, which investigated the use of voting as a conflict resolution and information extraction technique. The paper argued that a single outcome should be encouraged when data sources from different sensors contradicted each other, rather than relying on an abstract average. This outcome can be achieved through voting, here referring to a data fusion technique.

She later became the academic director for AIMS South Africa, where she helped to organize the 2021 AIMS Mathematics in Industry Study Group. This was a five day workshop where academics and graduate students collaborated with industry representatives to address research concerns submitted by local industries.

References 

Living people
Women in computing
Women roboticists
Zimbabwean scientists
Alumni of the University of Oxford
Year of birth missing (living people)
USA Jet Airlines Flight 199. USA Jet Airlines Flight 199 was a cargo flight from Shrevenport to Saltillo Airport. On July 6 2008 the McDonnell Douglas DC-9 operating the flight crashed on approach to its destination killing the captain, the first officer was seriously injured and taken to the hospital.

Aircraft

The aircraft involved was a McDonnell Douglas DC-9F powered by two Pratt & Whitney JT8D, registered as N199US manufactured in 1967, and initially operated by Continental Airlines. The aircraft was converted to a cargo plane in 1984, and acquired by USA Jet Airlines in 1996.

Accident

On July 5 the plane has flown from Detroit to Hamilton, Canada, to pick up automotive parts to deliver in Mexico. Then the plane took off again headed to Shreveport, where it arrived at 11:19 PM lo al time, and after that it took off again bound for Mexico at 11:48 PM. During approach the crew misidentified runway 35 of the destination airport, and attempted a go around, but it failed and the plane crashed after hitting wires only 800 m from the Saltillo's runway. The aircraft broke up on impact and burnt on the ground. The plane came to a rest near Libramiento José López Portillo, about 200 m away from some Mercury Cargo and DHL hangars.

Investigation
The mexican Federal Civil Aviation Agency investigated the crash, alongside representatives from the National Transportation Safety Board, which nominated Robert Benzon as its accredited representative. The final report stated that the probable causes of the accident were the continuation of an unstable final approach without having the runway in sight and the consequent loss of control during the go around. Contributing factors were pilot fatigue and pilot error.

References

External links
Video of the crash recorded by a security camera

Aviation accidents and incidents in Mexico
Accidents and incidents involving the McDonnell Douglas DC-9
Aviation accidents and incidents in 2008
Regulatory Innovation Office. The Regulatory Innovation Office (RIO) is an office within the UK Department for Science, Innovation and Technology established on 8 October 2024.

The Office's stated purpose is to speed up regulatory decisions by acting as a intermediary between government, regulators, and businesses. Initially the RIO will concentrate on sectors such as engineering biology, space, artificial intelligence, healthcare, drones, and other autonomous technology.

It will incorporate the existing functions of the Regulatory Horizons Council and the Regulators' Pioneer Fund.

As of October 2024, the Office is in the process of appointing a Chair, with interviews for the position planned to be completed by December 2024.

References 

Department for Science, Innovation and Technology
2024 establishments in the United Kingdom
Philips NMS 8220. The Philips NMS 8220 is a personal computer released in 1986 and compatible with the MSX2 standard. Developed by the Dutch electronics company Philips, it was aimed at both home users and small businesses. The NMS 8220 was one of the many computers that adhered to the MSX standard, a popular home computing platform in the 1980s that sought to unify hardware specifications across various manufacturers, enabling software compatibility.

Description 
The NMS (New Media Systems) branding reflected Philips' efforts to market the machine with a focus on multimedia, contrary to the previous VG (Video Game) series machines . The NMS 8220 was positioned as being able to handle productivity and educational software besides games. This was reinforced by inclusion of the "MSX Designer" program in ROM, with the machine booting it automatically.

The NMS 8220 featured a compact all-in-one design similar to the previous VG-8020. Two models were produced: the NMS 8220/00, sold mainly in Belgium, France and Netherlands; and the NMS 8220/16 sold in Spain with a different keyboard.

Specifications 
The NMS 8220 has the following technical specifications:

 CPU: Zilog Z80A at 3.58 MHz
 RAM: 64 KB
 VRAM: 128 KB
 Graphics: Yamaha V9938 (screen modes ranging from 256 x 192 pixels with 16 colors to 512 x 212 pixels with 16 colors; sprites and hardware scrolling)
 Storage: Cassette tape
 Ports: Includes two joystick ports, a printer port, two cartridges slots, a DIN-8 cassette port, a Scart connector, a DIN-8 monitor out and a RF video connector.
 Operating System: "MSX Designer" and MSX BASIC in ROM.

References 

MSX2 microcomputer
NMS 8220
Z80-based home computers
Xin Liu (computer scientist). Xin Liu is a Chinese-American computer scientist whose research involves computer networks and the applications of machine learning to complex systems. She is a professor of computer science at the University of California, Davis.

Education and career
Liu earned a bachelor's degree in electrical engineering from Xi'an Jiaotong University (XJTU) in 1994, and continued at XJTU for a master's degree in electrical engineering, advised jointly by Shihua Zhu and Xixing Zhu, in 1997. Her master's research concerned autofocus. She completed a Ph.D. in electrical and computer engineering at Purdue University in 2002, with the dissertation Opportunistic Scheduling in Wireless Communication Networks, jointly supervised by Ness Shroff and Edwin K. P. Chong.

After postdoctoral research with Rayadurgam Srikant at the Coordinated Science Laboratory of the University of Illinois Urbana-Champaign (UIUC), she became an assistant professor at UIUC in 2002. She took her present position at the University of California, Davis in 2003.

Recognition
Liu was named an IEEE Fellow in 2019, "for contributions to the design of cross-layer resource allocation algorithms for cellular and cognitive radio networks".

References

External links
Home page

Year of birth missing (living people)
Living people
Chinese computer scientists
Chinese women computer scientists
American computer scientists
American women computer scientists
Xi'an Jiaotong University alumni
Purdue University alumni
University of Illinois Urbana-Champaign faculty
University of California, Davis faculty
Fellows of the IEEE
Philips NMS 8245. The Philips NMS 8245 is a personal computer released by Philips in 1987 as part of its MSX2 line of computers. 

The NMS 8245, being compatible with the MSX2 standard, benefitted from the improvements introduced over the original MSX system, which include better graphical performance, more memory, and support for hardware sprites and smooth scrolling, which made it a popular choice for video games. However, like other MSX systems, it faced competition from other home computers such as the Commodore 64, Amiga, and Atari ST.

Description 
The NMS (New Media Systems) branding reflected Philips' efforts to market the machine with a focus on multimedia, contrary to the previous VG (Video Game) series machines . This was reinforced by offering the machine with three software discs: MSX-DOS 1, Ease (a multilingual office suite) and Designer Plus (a drawing program).

The Philips NMS 8245 features a black and silver plastic casing with an integrated keyboard, similar to the VG-8235. A double sided 3.5-inch disk drive was mounted on the right side of the computer, with no external connection for drives.

Three versions were produced:

 NMS 8245/00 for the Dutch and Belgian markets, with QWERTY keyboard;
 NMS 8245/16 for the Spanish market, with QWERTY keyboard with a ñ key;
 NMS 8245/19 for the French market, with AZERTY keyboard. 

It was also sold in Italy as the Phonola NMS 8245. There is a version adapted for home banking, used by Italian banks and at the Milan Stock Exchange.

Specifications 
The NMS 8245 has the following technical specifications:

 CPU: Zilog Z80A running at 3.58 MHz
 RAM: 128 KB 
 VRAM: 128 KB 
 Storage: internal a 3.5-inch floppy disk drive (720 KB)
 Ports: Printer port, two joystick ports, DIN-8 cassette port, DIN-8 composite monitor out, SCART RGB monitor out, RF TV out and cartridge connector
 Graphics: Yamaha V9938 (graphics modes with resolutions up to 512x212 pixels and up to 16 colors displayed simultaneously from a palette of 512 colors) 
 Sound: Yamaha S3527, capable of producing 3 channels of sound. 
 Operating System: MSX-DOS v 1.0, MSX BASIC v 2.1 and MSX Disk BASIC v 1.0

References 

MSX2 microcomputer
NMS 8245
Z80-based home computers
Philips NMS 8280. The Philips NMS 8280 was a MSX2 computer from the Dutch company Philips, launched in 1987. The abbreviation NMS stands for New Media System. Its integrated genlock enabled professional video use, and the case allowed installation in a video rack. Intended be a video editing system, the machine was sold with a mouse. The hardware was developed by Sanyo and is based on the Sanyo MPC-27.

Description 
The computer was divided into a desktop case and an external keyboard, with a similar appearance to the NMS 8250 and NMS 8255. Technically it was similar to the Philips VG-8235.

The computer was equipped with a Zilog Z80A microprocessor with a clock frequency of 3.58 MHz. The RAM and video memory were both 128 KB in size. It had a Yamaha YM9938 VDP video display processor and an S3527 sound chip that enabled three voices over eight octaves. The Philips NMS-8280 had a cassette interface, video input and output, two cartridge slots and one connection each for the keyboard and a printer. It also had an RF antenna connection and two ports for joysticks. Two 3.5-inch floppy drives for 720 KB diskettes were included as standard.

With the integrated genlock an external source could be connected to the video input and the image could be digitized. The Philips NMS 8280 has front sliders to control video and audio digitization levels and an input selector. The digitized image had a resolution of 256×212 pixels with 256 colors. The signal from the external video source could be mixed with the computer image to create video effects and display image titles.

The NSM 8280 came with three software disks: MSX-DOS 1, Home Office 2, Video Graphics and Demo disk.

Four models were produced with different regional keyboards:

 NMS 8280/00 for the Dutch and Belgian market with QWERTY keyboard; 
 NMS 8280/02 and NMS 8280/09 for the German market with QWERTZ keyboard; 
 NMS 8280/16 for the Spanish market with QWERTY keyboard adding the ñ key;
 NMS 8280/19 for the French market with  AZERTY keyboard.

In Italy the machine was sold as Phonola NMS 8280. A rare white 1990 version was sold as Philips HCS 280.

Specifications 

The Philips NMS 8280 had the following hardware specifications:

 CPU: Zilog Z80A at 3.58 MHz.
 RAM: 128 KB
 VRAM: 128 KB
 Display: Yamaha V9938 (80×24, 40×24 and 32×24 character text in four colors -  two foreground colors and two background colors; resolution of 512×212 pixels (with 16 from 512 colors) or 256×212 (with 256 from 512 colors).
 Sound: PSG (S-3527, 3 sound channels, one noise channel) 
 Storage: two 3.5'' disk drives (720KB)
 Ports: DIN cassette interface, composite and SCART video input and output, two cartridge slots, keyboard connector, printer port, RF TV out, two joystick ports
 Operating system: MSX Basic

References 

MSX2 microcomputer
NMS 8280
Z80-based home computers
PZM-2. PZM-2 () is a Soviet engineering vehicle for digging trenches, small pits, laying canals, filling them and other earthworks.

History 
It was created in the USSR in the 1960s for the engineering troops of the Soviet Armed Forces, but found wide application in many civilian sectors. The machine is mounted on the basis of the T-155 light artillery tractor, created on the basis of the T-150K agricultural wheeled tractor of the Kharkiv Tractor Plant. The working unit PZM-2 is a bar chain organ. In addition, there is auxiliary bulldozer equipment and a winch. In frozen soils, the machine ensures the excavation of trenches only.

In 2013, one PZM-2 earthmoving machine was modernized in Ukraine, receiving a modernized hydraulic system.

Technical specifications 
The vehicle is powered by a 165 horsepower (123 kW) SZMD-62 turbocharged diesel engine. The transmission has six forward and two reverse gears, with an additional six slower gears for digging. To achieve sufficient traction, the vehicle was also equipped with a 5,000 kg hydromechanically driven winch, which was located at the front of the machine. The PZM-2 has a roller chain on which there are digging buckets, and it is driven mechanically by the main tractor engine. A sliding plate is attached to the front of the vehicle. This is used to prepare the site of the trench or, traditionally, for earthmoving and dozer and soil leveling tasks.

All the mentioned works are performed in any climatic conditions in the temperature range from −40 ºС to + 40 ºС.
 Technical performance when digging trenches, m3/h — 140
 In thawed soils - 180
 In frozen soils - 35
 Maximum transport speed, km/h — 45
 Average transport speed, km/h — 20 — 25
 Operational range, km — 500
 Fireteam, people - 2
 Machine preparation time for work, min — 3 — 4
 Length, m — 6.99
 Width, m — 2.55
 Height, m — 3.8
 Weight, t — 12.8
 Fuel consumption, l:
 Per 100 km of the road - 55
 For 1 engine hour of work - 24
 Dimensions of the excavated pit, m:
 Depth - 3
 Bottom width - 2 - 3.5
 Top width - 2 - 3.5
 Dimensions of the excavated trench, m:
 Maximum depth - 1.2
 Top width - 0.9
 Bottom width - 0.6

Variants 

 PZM-2VDV (Regimental Earthmoving Machine - 2nd model, airborne troops) - with the ability to land, for digging trenches and pits, filling them, creating descents and other earthworks.
 PZM-2M is a modernization option proposed by the Kiev company OOO NPK Tekhimpex.

Operators 

 
 : 48, bought from Ukraine after the collapse of the Soviet Union.
 
 
 : adopted into service in 1968.

References

External links 
 сайт рг.ру, Илья Максимов, Это стоит увидеть: главные новинки форума "Армия-2021".
  
 

Military engineering vehicles of the Soviet Union
Military vehicles introduced in the 1960s