scholarly journals The CMS DAQ Pinball Machine

2020 ◽  
Vol 245 ◽  
pp. 08001
Author(s):  
Cynthia Cornu ◽  
Christian Deldicque ◽  
Maciej Gladki ◽  
André Holzner ◽  
Lydie Perrenoud ◽  
...  

We present an interactive game for up to seven players that demonstrates the challenges of on-line event selection at the Compact Muon Solenoid (CMS) experiment to the public. The game - in the shape of a popular classic pinball machine - was conceived and prototyped by an interdisciplinary team of graphic designers, physicists and engineers at the CMS Create hackathon in 2016. Having won the competition, the prototype was turned into a fully working machine that is now exhibited on the CMS visitors’ path. Teams of 2-7 visitors can compete with one another to collect as many interesting events as possible within a simulated LHC fill. In a fun and engaging way, the game conveys concepts such as multi-level triggering, pipelined processing, event building, the importance of purity in event selection and more subtle details such as dead time. The multi-player character of the game corresponds to the distributed nature of the actual trigger and data acquisition system of the experiment. We present the concept of the game, its design and its technical implementation centered around an Arduino micro-controller controlling 700 RGB LEDs and a sound subsystem running on a Mac mini.

1991 ◽  
Vol 30 (01) ◽  
pp. 53-64 ◽  
Author(s):  
R. Schosser ◽  
C. Weiss ◽  
K. Messmer

This report focusses on the planning and realization of an interdisciplinary local area network (LAN) for medical research at the University of Heidelberg. After a detailed requirements analysis, several networks were evaluated by means of a test installation, and a cost-performance analysis was carried out. At present, the LAN connects 45 (IBM-compatible) PCs, several heterogeneous mainframes (IBM, DEC and Siemens) and provides access to the public X.25 network and to wide-area networks for research (EARN, BITNET). The network supports application software that is frequently needed in medical research (word processing, statistics, graphics, literature databases and services, etc.). Compliance with existing “official” (e.g., IEEE 802.3) and “de facto” standards (e.g., PostScript) was considered to be extremely important for the selection of both hardware and software. Customized programs were developed to improve access control, user interface and on-line help. Wide acceptance of the LAN was achieved through extensive education and maintenance facilities, e.g., teaching courses, customized manuals and a hotline service. Since requirements of clinical routine differ substantially from medical research needs, two separate networks (with a gateway in between) are proposed as a solution to optimally satisfy the users’ demands.


2021 ◽  
pp. 1-9
Author(s):  
Bandana Sen ◽  
Aloke Kar

The present study provides a snapshot of the level of degradation of economic and living conditions of middle-class households of Kolkata and its neighbourhood during ‘lockdown’. It is based on an on-line survey of households of students of five purposively-selected colleges carried out during the second half of May 2020. The survey reveals that inflow of regular normal income had ceased altogether for over 40% of the sample households. About 15% of the households suffered from outright job loss or complete denial or withholding of wages and salaries payments of their members in paid employment and another about 27% reported complete closure of small businesses run by them. The normal-times income had altogether ceased for over a half of the households of the lowest income group. Predictably, the worst hit group was the wage labourers. Over four-fifths households with their prime earning member in wage employment reported job and earnings related problems, with over a fourth reporting job losses. Households with self-employed prime earners too were severely affected, with about three-fourths of them reporting such problems. Even the households with regular-salaried prime earners were badly hit. About a half of them reported job and earnings related problems. The results suggest that food grains distribution through the Public Distribution System (PDS) played a decisive role in averting an imminent famine-like situation. About 60% of the sample households were found to have procured food stuff from the PDS. Among the wage-labourers’ households, well over 80% reported dependence on the PDS, with ostensibly a large proportion of them receiving food altogether free. Despite free food grains distribution, about 5% of the sample households could not arrange three meals a day for all its members.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Christian Ariza-Porras ◽  
Valentin Kuznetsov ◽  
Federica Legger

AbstractThe globally distributed computing infrastructure required to cope with the multi-petabyte datasets produced by the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN comprises several subsystems, such as workload management, data management, data transfers, and submission of users’ and centrally managed production requests. To guarantee the efficient operation of the whole infrastructure, CMS monitors all subsystems according to their performance and status. Moreover, we track key metrics to evaluate and study the system performance over time. The CMS monitoring architecture allows both real-time and historical monitoring of a variety of data sources. It relies on scalable and open source solutions tailored to satisfy the experiment’s monitoring needs. We present the monitoring data flow and software architecture for the CMS distributed computing applications. We discuss the challenges, components, current achievements, and future developments of the CMS monitoring infrastructure.


2020 ◽  
Vol 10 (513) ◽  
pp. 420-434
Author(s):  
M. S. Pasmor ◽  
◽  
S. V. Demchenko ◽  
D. V. Zaitseva ◽  
◽  
...  

The topic of development and involvement of marketing instruments in business is relevant nowadays. In the era of the Internet, social networks and open information space, it is extremely important for companies and organizations to learn and implement new marketing instruments in order to utilize and fill the communication channels used by modern human in everyday life. Most marketing instruments, applied by the business environment before 2014–2016, are already becoming irrelevant due to the lack of feedback from the younger generation. From the off-line format, the interaction of business – buyer is increasingly moving to the on-line format. Thanks to the rapid development of digitalization in recent years, enterprises have received new channels of communication with their target audience, and, accordingly, new channels of communication and marketing instruments, which are covered in the publication. The article is aimed at theoretical studying the latest marketing instruments and analyzing their introduction into the creative industries of the city of Kharkiv. The latest marketing instruments are analyzed, examples of their use in the modern business environment of Ukraine are provided. Their adaptability is considered and recommendations for their use in commercial structures are made. Systematized and allocated are purely new marketing instruments used by business in the 21st century. The efficiency of their introduction into the activities of companies and organizations is substantiated and proved on specific examples. In addition, special attention is paid to the extended presentation of their use and disclosure of the essence on the example of the public organization «Kharkiv IT Cluster».


2012 ◽  
pp. 11-19
Author(s):  
András Cseh

Nowadays the different IT tools and use of the internet have appeared almost in every sectors of the economy, so it may give several benefits and help to the agricultural producers. In this article I give a brief overview about e-government and its’ opportunities, then I give a short description of a few important governmental and specialized administration on-line services which are provided to the farmers. According to many experts using of informatics may cause essential change in the operation of the administration because of the fact that the electronic administration may evolve. Generally speaking, today the egovernment services are already an indispensable device to the reformation of the public administration, the modification of services which suits to people's demands and the creation of the more adaptable, clearer public administration. The electronicdocuments are free from formal errors which is either important for clients or offices. The cases can be arranged even from home in 24 hours of the day. The spread and success of the use of electronic services depend not only on the quality of services, but the IT readiness of the target audience is also very important factor. Unfortunately the affect of e-gap is bigger in case of the farmers.


Sign in / Sign up

Export Citation Format

Share Document