Results 101 to 110 of about 38,727 (214)

Issues Related to Water Hammer in Francis-Turbine Hydropower Schemes: A Review

open access: yesEnergies
This paper reviews key parameters which may cause unacceptable water hammer loads in Francis-turbine hydropower schemes. Water hammer control strategies are presented for this context including operational scenarios (closing and opening laws), surge ...
Anton Bergant   +3 more
doaj   +1 more source

Uji Eksperimental Kekuatan Tekan Beton Muda (Early Age Concrete) Dengan Metode Hammer Test [PDF]

open access: yes, 2017
Penelitian ini mengkaji tentang hubungan antara kekuatan tekan beton muda dengan metode non destructive test. Penelitian ini bertujuan untuk mencari hubungan antara kuat tekan beton dengan menggunakan compressive testing machine dan angka pantul beton ...
Widodo, M.T., Dr. Slamet   +1 more
core   +1 more source

Design and Parameter Optimization of a Combined Rotor and Lining Plate Crushing Organic Fertilizer Spreader

open access: yesAgronomy
To address the inefficient crushing of fertilizer during the mechanized spreading process caused by the caking of high-humidity organic fertilizer, a fertilizer spreader with a combined rotor and lining plate crushing mechanism was proposed in this paper.
Bing Xu   +3 more
doaj   +1 more source

EVALUASI KUAT TEKAN BETON PADA BANGUNAN RUMAH SAKIT PENDIDIKAN UNSRAT DENGAN MENGGUNAKAN HAMMER TEST DAN CORE DRILL [PDF]

open access: yes, 2018
Pada masa sekarang, beton merupakan material yang dibuat atas dasar perencanaan yang teliti, sehingga dapat dioptimalkan kekuatannya. Karena berbagai variasi telah diberikan untuk pembangunan suatu bangunan maka harus dilakukan percobaan untuk melihat ...
Windah, Reky S.   +2 more
core   +1 more source

UJI EKSPERIMENTAL KEKUATAN TEKAN BETON MUDA (EARLY AGE CONCRETE) DENGAN METODE HAMMER TEST [PDF]

open access: yes, 2016
Penelitian ini mengkaji tentang hubungan antara kekuatan tekan beton muda dengan metode non destructive test. Penelitian ini bertujuan untuk mencari hubungan antara kuat tekan beton dengan menggunakan compressive testing machine dan angka pantul beton ...
Rhobani, M. Bilal
core  

Research on Pump Start Positive-pressure Water Hammer Duration Law of Long-distance Pipeline

open access: yesShiyou jixie, 2016
Negative pressure wave-based pipeline monitoring system has a higher false alarm rate so as to affect application effects. False alarm data of production site shows nearly 30% of false alarms are given to pump start operation of the pump station, so it ...
Wang Mingda   +6 more
doaj  

Drilling technology and gas-liquid dual-circulation technique for large-diameter rescue boreholes in mines

open access: yesMeitan kexue jishu
The construction of large-diameter rescue boreholes in mines faces challenges such as tight timelines, complex geological conditions, and high requirements for trajectory accuracy. To meet the needs for efficient and reliable hole formation under complex
Shijun HAO   +6 more
doaj   +1 more source

Modification of rock fabric of clastic sedimentary rocks due to the Schmidt hammer test [PDF]

open access: yes, 2013
iv Summary Schmidt hammer is the instrument which is used for the assessment of rock mechanical properties and this instrument is classified as the indirect method.
Snížek, Petr
core  

Impact Resistance Test and Numerical Simulation Study of Scrap Steel Fiber Rubber Concrete

open access: yesBuildings
The scrap steel fibers (SSF) produced by mechanical processing are processed and added to rubber concrete (RC) to make scrap steel fiber rubber concrete (SSFRC), so as to enhance the strength of the rubber concrete.
Mingshuai Li   +4 more
doaj   +1 more source

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