Нижний кембрий Западного Саяна

A miniaturized solid state laser for marking applications has been developed featuring novel assembly strategies to reduce size, cost and assembly effort. Design and setup have been laid out with future automation of the assembly in mind. Using a high precision robot the optical components composing the laser system are directly placed on a planar substrate providing accurate positioning and alignment within a few microns. No adjustable mounts for mirrors and lenses are necessary, greatly simplifying the setup. Consisting of either a ND:YAG or a Nd:YVO4 crystal pumped with a fiber coupled diode laser, a q-switch for pulse generation and a beam expander the entire assembly is confined in a 100ml space and delivers 4 W of continuous output power at 1.064 ?m with an efficiency greater than 40%. Pulse lengths of 10-20 ns and repetition rates of up to 150 kHz have been obtained with an acousto-optic modulator. In addition, a custom designed electro-optic modulator with integrated high voltage switch has been realized. A supply unit for the entire system, including scanner and water cooling, is integrated in a 19" industrial chassis and can be operated via a graphical user interface on a standard personal computer

Киев-Еганское месторождение нефти

Рассматривается геологическое строение Киев-Еганского нефтяного месторождения Томской области, описываются его нефтеносные объекты, отмечается значение данного месторождения с точки зрения поисков нефтяных и газовых месторождений в восточном направлении

Verfahren und Vorrichtung zur Herstellung einer Lotverbindung zwischen zwei im Wesentlichen nicht metallisch leitenden Bauteilen

WO 2009076930 A2 UPAB: 20090707 NOVELTY - Method for producing a soldered connection between two components (1, 2) comprises applying a layer of solder (5) to one component. It is then melted by passing a current between two electrodes (6a, 6b) in contact with it. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for apparatus for carrying out the method comprising a movable gripper (4) for one of the components and electrodes on the other or attached to the gripper. USE - Mounting semiconductors on circuit boards. ADVANTAGE - Heat transfer is localized to the zone in which the connection is made

Yb:YAG Innoslab amplifier: efficient high repetition rate subpicosecond pumping system for optical parametric chirped pulse amplification

We report on a Yb:YAG Innoslab laser amplifier system for generation of subpicsecond high energy pump pulses for optical parametric chirped pulse amplification (OPCPA) at high repetition rates. Pulse energies of up to 20 mJ (at 12.5 kHz) and repetition rates of up to 100 kHz were attained with pulse durations of 830 fs and average power in excess of 200 W. We further investigate the possibility to use subpicosecond pulses to derive a stable continuum in a YAG crystal for OPCPA seeding

За кадры. 1985. № 31 (2574)

Мир шагает по планетеВ фонд мира / З. ЧерноваНовые электромашиныДиплом из звездного / Р. ГорскаяПоступь первомая / В. ПетровКоммунистыБыть первымиСобрались отличники / Л. КоробейниковаУспех студентов / Т. Сидорова"Рабфак" набирает темп / И. УдутИдет пополнение / В. КощиевВ нем наша жизнь и наша месть святая… / Г. В. Яловская"Звездным войнам" -нет! / Л. ЛобачКуба, любовь моя / В. И. МихалевЗвучат песни борьбы / М. ШевчукОтмечая праздник / О. Т. ЛойкоБез страха и сомнений / Н. КуцанБольшие спортивные игры / Б. М. ПлотниковНовые старты / А. ДобужскийВремя весенних раздумий / А. СозиновРазмыли краски зимние весенние ветра / Ю. ЧервячковАлександрово / В. ДарменкоКуклы умеют не только смеяться / [беседа с] Р. М. Видерман ; [беседовал] Е. ВодопьяновРасписные терема / В. Яковле