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American Concrete Institute

The American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.

Hydraulic Institute (HI) Standards and Technical Documents ...

Rotary Pumps (ANSI/HI 3.1-3.5) -- A109. The Hydraulic Institute's comprehensive Rotary Pump Standard ANSI/HI 3.1 – 3.5. Released in 2008 and substantially updated, this edition has twenty additional pages, 40% more content, and increased educational information. Rotary Pump Standard Package -- PK-Rotary.

A compact and efficient 4.25 μm BaGa Se optical parametric ...

Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China ... pump light of 1064 nm with good beam quality and short ... to an optical–optical conversion efficiency of 7.6% from 1.064 μm to 4.25 μm, which was the highest conversion

Optical-pumping noise in laser-pumped, all-optical ...

Optical-pumping noise in laser-pumped, all-optical microwave frequency references J. Kitching,* H. G. Robinson, and L. Hollberg Time and Frequency Division, The National Institute of Standards and Technology, M.S. 847.10, 325 Broadway,

nayan jain nj - Sagar Institute of Pharmaceutical Sciences ...

Sagar Institute of Pharmaceutical Sciences, Sironja, Infront of Jubilee Petrol Pump, NH-26, Narsinghpur Road, Sagar-470004 Bachelor of Pharmacy - BPharm Business Administration and …

OPT - Optical Pumping

6.5 Timescales for optical pumping using square wave amplitude modulation of the rf eld. . . . 17 7 Analysis 17 References 19 1. 1 Introduction One of the great early successes of quantum mechanics was its use to describe the structure of atoms and molecules. As is now well-known, the internal structure of atoms and molecules can be described ...

Water Pumping Institute

Pumping System Master Class (US) This course is about how to save $1,000s on pumping costs. Robert has modelled the "Pumping System Master Class" on his own experiences, where he has saved over 50% of pumping costs on some irrigation sites in recent times. So, Robert is teaching only what he's practiced. The course is themed around pumping ...

Pushing the limits of pump design for small farmers in ...

May 18, 2015· The pump problem "Lots of people ask us why this pump hasn't been made," Simon explains, noting that an estimated 23 million small-acreage farmers in eastern India use diesel pumps (often improperly-sized for individual fields) or rely on the annual monsoon.

OSA | Doppler-free dual-comb spectroscopy of Rb using ...

In this study, we demonstrated the broadband Doppler-free OODR spectroscopy using a dual-comb system. Doppler broadenings were removed by the velocity-selective pumping, and the dual-comb system was applied as a probe system that can achieve high resolution only limited by the comb mode linewidth of 14.5 kHz.

Metastability Exchange Optical

Metastability Exchange Optical Pumping (MEOP) of 3He in situ Abstract: Polarized helium-3 is used as a contrast agent for lungs magnetic resonance imaging that has recently reached the pre-clinical applications. One method to hyperpolarize 3He is the metastability exchange …

[J. Res. Natl. Inst. Stand. Technol. 106 Compressing Spin ...

Volume 106, Number 4, July–August 2001 Journal of Research of the National Institute of Standards and Technology [J. Res. Natl. Inst. Stand. Technol. 106, 709–729 (2001)] Compressing Spin-Polarized 3He With a Modified Diaphragm Pump

Optical Pumping - University of Michigan

Physics441/2 Optical Pumping 3 K =5/2 and 87Rb with K =3/2.The j =1/2 rubidium ground states for the two isotopes are split by the hyperfine interaction into doublets with F = K±1/2.The hyperfine interaction is the magnetic interaction of the nu-

Building Performance Institute, Inc.

Building Performance Institute, Inc. |. In these extraordinarily difficult times, BPI is closely monitoring developments regarding the coronavirus, COVID-19. We are currently developing creative and safe ways within the BPI Network to assist those who need training and testing for our stakeholders keeping in mind the CDC's guidance on social ...

Comparing the oscillation phase in optical pump-probe ...

PHYSICAL REVIEW B 85, 224302 (2012) Comparing the oscillation phase in optical pump-probe spectra to ultrafast x-ray diffraction in the metal-dielectric SrRuO 3/SrTiO 3 superlattice Andre Bojahr,´ 1Daniel Schick, 1Lena Maerten, Marc Herzog, Ionela Vrejoiu,2 Clemens von Korff Schmising,3 Chris Milne,4 Steven L. Johnson,5 and Matias Bargheer1,6 * 1Institute of Physics and Astronomy, University ...

Optical-Optical Double-Resonance Absorption Spectroscopy ...

Selective pumping and probing highly-excited states of molecules are essential in various studies, but also challenging due to high density of states, weak transition moments, and lack of precise ...

-ience - Massachusetts Institute of Technology

OPTICAL- OPTICAL DOUBLE RESONANCE STUDY OF THE 3 ' A' STATE OF HCP by BHAVANI RAJARAM B. Sc. Chemistry, University of Madras, India (1986) M. Sc. Chemistry, Indian Institute of Technology, Madras, India (1988) SUBMITTED TO THE DEPARTMENT OF CHEMISTRY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY at the

Optical Pumping - University of British Columbia

California Institute of Technology Physics 77 Optical Pumping Eric D. Black September 27, 2004 Sometimes you want to magnetize a gas, to align all of the little mag-netic moments of the gas atoms in the same direction. You might plan to have somebody inhale the polarized gas, then look at …

Resonant Pumping of Er-Doped Fiber Amplifiers for Improved ...

O = optical-optical or slope efficiency and includes the quantum defect, h Q. For comparison, the efficiencies for various pump configurations are shown in Table 1. The optical-to-optical efficiency for 1530 nm pumped fiber in Table 1 is taken from data in Table 2 on what has been published recently for similar systems. Note that core pumping is

API - American Petroleum Institute

Jul 27, 2021· The American Petroleum Institute (API) is the only national trade association that represents all aspects of America's oil and natural gas industry. Our more than 600 corporate members, from the largest major oil company to the smallest of independents, come from all segments of …

High-Efficiency High-Power Nd:YAG ... - Institute of Physics

high slope e ciency of 72.4% and an optical-optical conversion e ciency of 68.1%. For the incident pump power emitted directly from the LD, the optical-optical e ciency is 58.4%. To the best of our knowl-edge, this is the maximum optical-optical conver-sion e ciency ever obtained for an LD end-pumped Nd:YAG system.

hydraulic institute standards pdf free download - 2021 ...

Mar 14, 2018· As you asking I am providing Hydraulic Institute Pump Standards Version 2.2 info in pdf which you can do download it on free of cost : Centrifugal Pumps. Nomenclature and Definitions (ANSI/HI 1.1-1.2) •. Design and Application (ANSI/HI 1.3) •. Installation, Operation, and Maintenance (ANSI/HI 1.4) •. Centrifugal Pump Tests (ANSI/HI 1.6)

Introduction to Pumping Stations for Water Supply Systems

the pump station and intake structure are to be located within a surface or underground reservoir, vertical turbine pumps with the column extending down into the reservoir or its suction well will be a logical choice. If the pump station is located at an above ground storage facility, split case centrifugal pumps will be the preferred selection.

Thermal Cesium beam frequency standard with optical ...

We report the progress done at CENAM to build a thermal Cesium-beam frequency standard, with a short Ramsey cavity and optical pumping for atom detection and energy-state selection. In this paper we report our first observation of resonance pattern for the clock transition, in our setup.

Hydraulic Institute Training Center | Pumps & Systems

Welcome to the Hydraulic Institute Perspective – a partnership with Pumps & Systems – to provide a comprehensive source for pump system training and technical solutions. The industry's leading product-neutral training resources are featured in TRAINING which focuses on energy efficiency, reliability, economics and effective application of pump systems.

Optical Pumping of Rubidium Vapor | Experiments ...

The time constant of the pumping action is measured as a function of the intensity of the pumping light, and the results are compared with a theory of competing rate processes - pumping versus collisional depolarization. Lab Guide. Optical Pumping of Rubidium Vapor Lab Guide (PDF) References. Bell, William E., and Arnold L. Bloom.

Robert L Welke - Managing Director - WATER PUMPING ...

WATER PUMPING INSTITUTE is an International body committed to education in pumping system energy efficiency. Pumping system energy efficiency is not just about the pump, its mostly about the pumping system hydraulics. We conduct Online + 2 day Workshop training courses on "Pumping System Master Class", "Advanced Pumping & Hydraulics" and ...

Efficient 1.35 µm laser emission of Nd‐doped Sr3Ga2Ge4O14 ...

We describe the output performances of the 1.35 µm 4F3/2 → 4I13/2 transition in Nd-doped Sr3Ga2Ge4O14 (SGG) under in-band pumping with diode lasers at …

Optical Pumping - Massachusetts Institute of Technology

Feb 17, 2011· A. Kastler discovered optical pumping in the 1950's and received the Nobel Prize for his work in 1966. In this experiment you will explore the phenomenon of op-tical pumping and its application to fundamental mea-surements in atomic and nuclear physics with equipment originally built for the Junior Lab shortly after the pub-

(PDF) Stimulated-emission pumping spectroscopy of ...

1944 J. Opt. Soc. Am. B/Vol. 7, No. 9/September 1990 F.G. Celii and J. P. Maier Stimulated-emission pumping spectroscopy of molecular ions F. G. Celii* and J. P. Maier Institutfur Physikalische Chemie, UniversititBasel, Klingelbergstrasse80, Basel, Switzerland Received February 15, 1990; accepted April 16, 1990 Stimulated-emission pumping (SEP) spectroscopy has been applied to the study of ...

Exclusive Pumping Institute

The Exclusive Pumping Institute (EPI) focuses on the education, training and research of exclusively pumping breastmilk. EPI offers education and training of exclusive pumping for Lactation Professionals. EPI offers Niagara Region hospital grade breast pump rentals at affordable prices.

Optical Pumping of Rubidium Vapor | Experiments ...

The Hydraulic Institute (HI) is the global authority on pumps and pumping systems.HI is a pump association of positive displacement and rotodynamic, centrifugal pump manufacturers and suppliers whose mission is to be a value-adding resource to member companies, engineering consulting firms, and pump users worldwide.

Hydraulic Considerations in Pumping System Design

• Hydraulic Institute (HI) Standards, other references • Consider constraints –site, budget, etc. • Collect/develop information needed to create system curves • Elevations of suction, pump room floor, high points, discharge • For retrofits, survey/measure existing elevations, test …

Optical–optical double resonance studies of rotational ...

The U.S. Department of Energy's Office of Scientific and Technical Information