«Noi non riprendiamo la realtà: la inventiamo»: Eugenio Carmi

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Anna Barenghi
Keyword(s):  
Fairy Tale ◽  
Video Camera ◽  
Video Monitor ◽  
Feedback Process ◽  
Umberto Eco ◽  
Color Video ◽  
Television Medium

In the late 1960s, at the invitation of Umberto Eco, Eugenio Carmi began to collaborate with Servizio Programmi Sperimentali in Rai. After some research on perception, the artist proposed an actual “transgression” for the use of television medium: using cameras not to film the reality, but to create a completely abstract color video work. From an exchange with Rai technicians, the idea was born to use in an artistic way the disturbance generated when you point a video camera at its own playback video monitor. Thus began the first Italian videoart experiments of so-called “feedback” process, to get between 1972 and 1974 to the documentary Arte elettronica, arte della luce and the video work C’era una volta un re, and then, in 1977, the animated fairy tale Olivo verde vivo created by the painter’s daughters Antonia and Francesca Carmi with Giulio Masoni.

Visualization of diesel spray and combustion from lateral side of two-dimensional piston cavity in rapid compression and expansion machine

2020 ◽  
pp. 146808742096229
Author(s):  
Chengyuan Fan ◽  
Daoyuan Wang ◽  
Keiya Nishida ◽  
Yoichi Ogata
Keyword(s):  
High Speed ◽  
Combustion Process ◽  
Video Camera ◽  
Lateral Side ◽  
Two Dimensional ◽  
Split Injection ◽  
Compression And Expansion ◽  
Color Video ◽  
Wall Interaction ◽  
Injection Strategies

Effect of spray/wall interaction in a rapid compression and expansion machine on mixture formation, ignition location, and soot generation was investigated. A two-dimensional piston cavity designed as the cross section of a reentrant piston was utilized to observe the spray and combustion process from the lateral side. The experiment was conducted at 120 MPa injection pressure under single and split injection strategies with an ambient gas of 15% O2 concentration. A shadow methodology was applied to investigate the interaction between the fuel spray and the piston cavity. Combined with the natural flame luminosity captured by a high-speed color video camera, the behaviors of the impinging spray and the combustion process were studied. The combustion characteristics of the in-cylinder pressure, heat release and combustion phase were recorded and analyzed simultaneously. The results showed that the split injection strategies effectively softened the heat release trace and promoted the onset of the main combustion. The cool-flame phenomenon was captured by using the high-speed color video camera, and the intense ignition was observed when the pilot spray was controlled to impinge on the lower lip of the piston rim. Moreover, results also showed that further extending the mixing process of the pilot spray is inclined to form a homogeneous mixture which was beneficial for the promotion of low-temperature combustion and the reduction of soot generation. This research provides a detailed investigation on the spray and combustion process and it highlights the significant effect of spray/wall interaction on the subsequent combustion process.

Battery‐Operated Color Video Camera for Root Observations in Mini‐Rhizotrons 1

1984 ◽  
Vol 76 (6) ◽  
pp. 1015-1017 ◽  
Author(s):  
D. R. Upchurch ◽  
J. T. Ritchie
Keyword(s):  
Video Camera ◽  
Color Video

An ultrahigh-speed color video camera operating at 1,000,000 fps with 288 frame memories

2008 ◽  
Author(s):  
K. Kitamura ◽  
T. Arai ◽  
J. Yonai ◽  
T. Hayashida ◽  
T. Kurita ◽  
...  
Keyword(s):  
Video Camera ◽  
Color Video

The AirScope: A Novel Wireless Laparoscope

2012 ◽  
Vol 6 (4) ◽  
Author(s):  
John Lazarus
Keyword(s):  
Video Transmission ◽  
Fiber Optic ◽  
Video Camera ◽  
Video Monitor ◽  
High Definition ◽  
Experimental Prototype ◽  
Camera Systems ◽  
Wide Angle Lens ◽  
Expected Benefits

The modern laparoscope relies on Hopkins’ glass rod lenses, a fiber-optic light source, a video camera, and external cables. This paper discusses the feasibility of developing an experimental prototype of a completely wireless laparoscope by making use of the latest in electronic and optic miniaturization. Design requirements were defined to mimic a standard 10 mm adult laparoscope. An 8 mm diameter (CMOS) camera was used, which delivered standard definition TV resolution at an image refresh rate of 30 Hz. A wide-angle lens was chosen, and a focusing mechanism was designed. Instead of a fiber-optic cable, illumination was achieved using four miniature LED lights. A 2.4 GHz wireless transmission with adequate range for use in an operating theater was chosen. A wireless receiver on a standard personal computer was used to drive a video monitor using off the shelf image processing software. A built-in rechargeable battery powered the wireless laparoscope. Flicker-free in vitro wireless video transmission was achieved. The laparoscope was made waterproof with a front cover lens and can be gas or chemically sterilized. The prototype laparoscope weights 78 g as compared with 900 g for a typical 10 mm laparoscope, camera, fiber-optic, and camera cables. Drawbacks of the prototype include reduced resolution of the video image as compared to high definition (HD) TV quality available on the most recent commercial camera systems. This experimental prototype has illustrated the feasibility of wireless endoscopy systems. The expected benefits include improved ergonomic maneuverability, reduced weight, and decreased electric power requirements.

Teaching with a Video System Improves the Training Period but Not Subsequent Success of Tracheal Intubation with the Bullard Laryngoscope

2003 ◽  
Vol 98 (3) ◽  
pp. 615-620 ◽  
Author(s):  
G. Brent Shulman ◽  
Ned G. Nordin ◽  
Neil Roy Connelly
Keyword(s):  
Video Camera ◽  
Video Monitor ◽  
Initial Training ◽  
Management Scenarios ◽  
Video System ◽  
Anesthesia Providers ◽  
Significant Difference ◽  
Indirect Feedback ◽  
Video Group ◽  
Bullard Laryngoscope

Background The Bullard laryngoscope is useful for the management of a variety of airway management scenarios. Without the aid of a video system, teaching laryngoscopy skills occurs with indirect feedback to the instructor. The purpose of this study was to determine if use of a video system would speed the process of learning the Bullard laryngoscope or improve the performance (speed or success) of its use. Methods Thirty-six anesthesia providers with no previous Bullard laryngoscope experience were randomly divided into two groups: initial training (first 15 intubations) with looking directly through the eyepiece (n = 20), or with the display of the scope on a video monitor (n = 16). The subjects each then performed 15 Bullard intubations by looking directly through the eyepiece. Results There was not an overall significant difference in laryngoscopy or intubation times between the groups. When only the first 15 intubations were considered, the laryngoscopy time was shorter in the video group (26 +/- 24) than in the nonvideo group (32 +/- 34; P< 0.04). In the first 15 patients, there were fewer single attempts at intubation (67.9% vs 80.3%; P< 0.002) and more failed intubations (17.2% vs 6.0%; P< 0.0001) in the nonvideo group. Conclusions In conclusion, the authors have shown that use of a video camera decreases time for laryngoscopic view and improves success rate when the Bullard laryngoscope is first being taught to experienced clinicians. However, these benefits are not evident as more experience with the Bullard laryngoscope is achieved, such that no difference in skill with the Bullard laryngoscope is discernible after 15 intubations whether a video system was used to teach this technique.

Fiber Optics Based Jet Engine Augmenter Viewing System

1989 ◽  
Vol 111 (2) ◽  
pp. 306-309
Author(s):  
P. J. Murphy ◽  
D. W. Jones ◽  
A. E. Lennert ◽  
R. R. Jones
Keyword(s):  
High Temperature ◽  
Fiber Optics ◽  
Fiber Optic ◽  
Video Camera ◽  
Jet Engine ◽  
Front End ◽  
Lens Assembly ◽  
Color Video ◽  
Engine Testing ◽  
Optic Array

An augmenter viewing system employing a coherent fiber-optic array was developed for use in jet engine testing applications at AEDC. Real-time viewing of the test article afterburner was obtained in a severe environment under high temperature and vibration levels. The optical system consisted of a conventional front-end lens assembly coupled with the fiber-optic array, and a solid-state color video camera mounted inside the test cell. The advantages and problems associated with a fiber-optics-based viewing system will be discussed in comparison with more conventional viewing techniques for this application.

Ability to Detect Covert Observation

1997 ◽  
Vol 85 (1) ◽  
pp. 75-80
Author(s):  
Gary T. Rosenthal ◽  
Barlow Soper ◽  
Rebecca S. Tabony ◽  
Abe Rosenthal
Keyword(s):  
College Students ◽  
Video Camera ◽  
Video Monitor ◽  
Hidden Observer ◽  
Covert Observation

A study was conducted to evaluate persons' purported ability to detect hidden observers. Anecdotally, most people (87%) report that covert observation can be detected. A total of 140 college students individually sat in a room with a two-way mirror and video-monitor camera. They were told that they might be observed for any or all of the subsequent 5 min. Participants noted whether they felt a hidden observer watched them during each minute of the 5-min. session. After the session, students reported if a possible hidden observer watched via a two-way mirror or video camera or if they were not watched. Students were unable to detect observation beyond chance. Possible reasons for the persistence of the belief in detection of covert observation are posited as impetus for further research.

Novel Technologies for Automatic Focusing and White Balancing of Solid State Color Video Camera

1983 ◽  
Vol CE-29 (3) ◽  
pp. 376-382 ◽  
Author(s):  
Kentaro Hanma ◽  
Michio Masuda ◽  
Hiroaki Nabeyama ◽  
Yohei Saito
Keyword(s):  
Solid State ◽  
Video Camera ◽  
Novel Technologies ◽  
Color Video ◽  
White Balancing ◽  
Automatic Focusing
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