Results 31 to 40 of about 6,208 (141)

Monolithic frequency converters 5 and 3 bands

Технологія та конструювання в електронній апаратурі, 2006
This paper presents the description and research results of monolithic frequency converters for the 5- and 3-millimeter ranges. The design and technological solutions are aimed at using these converters as functionally complete modules in transceiver ...
V. V. Tkachenko, A. V. Mai, V. I. Mai, Y. O. Udod, M. I. Ugrin   +4 more
doaj  

Did I have a dream last night? White dreaming as metacognitive feelings

Mind &Language, EarlyView.
While most research on sleep mentation focuses on dream reports, sleep experiences can also include reports lacking content, such as white dreaming—the feeling of knowing one dreamt but being unable to recall its contents. I claim that white dreaming is a metacognitive feeling, akin to tip‐of‐the‐tongue and déjà experiences.
Adriana Alcaraz Sánchez
wiley   +1 more source

Monolithic balanced mixer for the 80–100 GHz frequency range

Технологія та конструювання в електронній апаратурі, 2003
A monolithic balanced mixer operating in the 80–100 GHz frequency range has been developed and studied. The device features a high level of integration and resistance to mechanical and climatic factors.
E. N Aseeva, V. I. Mai, A. V. Mai, V. I. Superson, V. V. Tkachenko   +4 more
doaj  

Dental Arch Expansion With In‐House Clear Aligners: An Exploratory Prospective Clinical Study on Torque, Vertical Control and Attachment Configuration

Orthodontics &Craniofacial Research, EarlyView.
ABSTRACT Objective To evaluate the short‐term efficacy of transverse dental arch expansion with in‐house aligners (IHA) by comparing planned and achieved buccolingual movements, and secondarily to explore torque expression, vertical control and the influence of attachment design/position using a contralateral within‐subject approach.
Gabriel Maia Azevedo, Raiane Machado Maia, Arthur Siqueira Calaes de Oliveira, Julia Franzot Castilho, Carlo Bosoni, Lorenzo Franchi, Bernardo Quiroga Souki   +6 more
wiley   +1 more source

Research of the operability of an air-fuel lubrication and cooling system of gas turbine engine rotor bearings

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
The article is devoted to the problem of ensuring the operability of air-fuel lubrication and cooling systems for gas turbine engine (GTE) rotor bearings. The paper considers one of the advanced designs of a GTE in which an air-fuel mixture obtained in a
V. N. Klimov, D. Ya. Dud’ev, V. Ya. Sigaylo, N. I. Klimov, Yu. K. Mashkov   +4 more
doaj   +1 more source

Multichannel radiometer for radiovision systems

Технологія та конструювання в електронній апаратурі, 2003
The paper presents the results of developing a multichannel radiometer for the “Zir” radiovision system. The radiometer is designed using a superheterodyne scheme with double frequency conversion and provides signal reception in two frequency sub-bands —
V. A. Berezhnoy, V. I. Kuzhel, A. P. Tuzenko, Yu. N. Muskin, Yu. A. Demyanenko, A. F. Ryabchuk, V. A. Sankin, B. S. Cherniy, S. A. Shilo   +8 more
doaj  

Collisionless Shocks: Contemporary State After Three Quarters of a Century of Research

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract The collisionless shock research started in the late 1950s. Since then, plenty of data have been accumulated due to the large number of missions in the heliosphere, providing in situ measurements of the fields and particles. The quality of these measurements has vastly improved, especially in the last two decades.
M. Gedalin, M. Balikhin, V. Krasnoselskikh   +2 more
wiley   +1 more source

Input device for RLS with protection from powerful signal

Технологія та конструювання в електронній апаратурі, 2007
The results of developing a low‑noise amplifier for the frequency range 7.525–8.025 GHz with protection against high‑power signals of synchronous and asynchronous interference with continuous power up to 7 W are presented.
I. V. Yakovlev, Yu. A. Demyanenko, V. A. Sankin, N. M. Chizma   +3 more
doaj  

Massive Rocky Planets May Suppress Deep Melting

AGU Advances, Volume 7, Issue 4, August 2026.
Abstract Melting properties of silicates are critical to understanding the thermal evolution of rocky planetary interiors. In the deep mantles of massive rocky planets, post‐post‐spinel Mg2SiO4 ${\text{Mg}}_{2}{\text{SiO}}_{4}$ is potentially one of the most abundant mineral phases, yet its melting behavior remains unconstrained. Here, we determine the
Donghao Zheng, Yihang Peng, Jie Deng
wiley   +1 more source

Evaporator for thermal deposition of materials in vacuum

Технологія та конструювання в електронній апаратурі, 2008
The design of an evaporator intended for material deposition in vacuum-coating systems is considered, which has been successfully employed in the technological process of fabricating gallium arsenide transistors, diodes, and monolithic circuits.
V. I. Bosyi, V. P. Kokhan, N. M. Rakhmanov   +2 more
doaj