scholarly journals Correction to: Combination of the Push-Down and Let-Down Techniques: Mix-Down Approaches

2021 ◽  
Author(s):  
Güncel Öztürk
Keyword(s):  
Push Down

scholarly journals Investigation of Diagonal Strut Actions in Masonry-Infilled Reinforced Concrete Frames

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Seung-Jae Lee ◽  
Tae-Sung Eom ◽  
Eunjong Yu
Keyword(s):  
Reinforced Concrete ◽  
Failure Mode ◽  
Yield Criterion ◽  
Friction Angle ◽  
Concrete Frames ◽  
Element Analysis ◽  
Reinforced Concrete Frames ◽  
Infilled Frames ◽  
Masonry Infills ◽  
Push Down

AbstractThis study analytically investigated the behavior of reinforced concrete frames with masonry infills. For the analysis, VecTor2, a nonlinear finite element analysis program that implements the Modified Compression Field Theory and Disturbed Stress Field Model, was used. To account for the slip behavior at the mortar joints in the masonry element, the hyperbolic Mohr–Coulomb yield criterion, defined as a function of cohesion and friction angle, was used. The analysis results showed that the lateral resistance and failure mode of the infilled frames were significantly affected by the thickness of the masonry infill, cohesion on the mortar joint–brick interface, and poor mortar filling (or gap) on the masonry boundary under the beam. Diagonal strut actions developed along two or three load paths on the mortar infill, including the backstay actions near the tension column and push-down actions near the compression columns. Such backstay and push-down actions increased the axial and shear forces of columns, and ultimately affect the strength, ductility, and failure mode of the infilled frames.

scholarly journals “Push–Pull Technique” for the Management of a Selected Superomedial Intraorbital Lesion

2018 ◽  
Vol 04 (03) ◽  
pp. e105-e109 ◽  
Author(s):  
Paolo Castelnuovo ◽  
Giacomo Fiacchini ◽  
Francesca Fiorini ◽  
Iacopo Dallan
Keyword(s):  
Venous Malformation ◽  
Complete Resection ◽  
Safe Procedure ◽  
Combined Approach ◽  
Main Approach ◽  
Transnasal Approach ◽  
Superior Eyelid Approach ◽  
Push Down ◽  
Orbital Lesions

Orbital lesions are traditionally managed through external approaches when laterally located, and through a transnasal approach or other external approaches when medially located. However, when the lesion is superomedially located, it may determine a technical challenge.In this study, we present the case of a patient with a superomedial intraconal venous malformation of the left eye. We addressed the mass through a combined approach, using the transnasal route as the main approach, and the superior eyelid approach to push down the lesion to facilitate the excision. We have called this approach “push–pull technique.”We achieved a complete resection of the lesion and did not observe any intraoperative or postoperative complications. The last follow-up at 6 months postoperatively showed no recurrence, and the patient was satisfied and completely recovered.According to our experience, the “push–pull” technique seems to be a safe procedure and might be considered a valid alternative to address selected superomedial intraconal lesions.

scholarly journals Pitfalls and limitations in seismic attribute interpretation of tectonic features

2015 ◽  
Vol 3 (1) ◽  
pp. SB5-SB15 ◽  
Author(s):  
Kurt J. Marfurt ◽  
Tiago M. Alves
Keyword(s):  
Seismic Data ◽  
Seismic Attributes ◽  
Seismic Attribute ◽  
3D Data ◽  
Amplitude Data ◽  
Seismic Sections ◽  
Push Down ◽  
Data Coherence ◽  
Level Of Experience ◽  
Tectonic Features

Seismic attributes are routinely used to accelerate and quantify the interpretation of tectonic features in 3D seismic data. Coherence (or variance) cubes delineate the edges of megablocks and faulted strata, curvature delineates folds and flexures, while spectral components delineate lateral changes in thickness and lithology. Seismic attributes are at their best in extracting subtle and easy to overlook features on high-quality seismic data. However, seismic attributes can also exacerbate otherwise subtle effects such as acquisition footprint and velocity pull-up/push-down, as well as small processing and velocity errors in seismic imaging. As a result, the chance that an interpreter will suffer a pitfall is inversely proportional to his or her experience. Interpreters with a history of making conventional maps from vertical seismic sections will have previously encountered problems associated with acquisition, processing, and imaging. Because they know that attributes are a direct measure of the seismic amplitude data, they are not surprised that such attributes “accurately” represent these familiar errors. Less experienced interpreters may encounter these errors for the first time. Regardless of their level of experience, all interpreters are faced with increasingly larger seismic data volumes in which seismic attributes become valuable tools that aid in mapping and communicating geologic features of interest to their colleagues. In terms of attributes, structural pitfalls fall into two general categories: false structures due to seismic noise and processing errors including velocity pull-up/push-down due to lateral variations in the overburden and errors made in attribute computation by not accounting for structural dip. We evaluate these errors using 3D data volumes and find areas where present-day attributes do not provide the images we want.

scholarly journals Muscle activity in the lower limbs during push-down movement with a new active-exercise apparatus for the leg

2016 ◽  
Vol 28 (3) ◽  
pp. 1050-1054 ◽  
Author(s):  
Kenta Tanaka ◽  
Hiroshi Kamada ◽  
Yukiyo Shimizu ◽  
Shizu Aikawa ◽  
Shun Irie ◽  
...  
Keyword(s):  
Muscle Activity ◽  
Lower Limbs ◽  
Push Down

Design on an Intelligent Self-Locking System of Clutch for Bus

2012 ◽  
Vol 479-481 ◽  
pp. 1905-1908
Author(s):  
Qiong Zhang ◽  
Xue Ying Tian ◽  
Shuo Zhang ◽  
Chu Na Wu ◽  
Li Wen Xu
Keyword(s):  
Driving Safety ◽  
Driver Assistance ◽  
Clutch Pedal ◽  
Push Down

An intelligent self-locking system of clutch which uses MC9S12XS128MAL as the main microcontroller was designed in this research. The system detects whether the door is completely closed or not by the position switch installed in the door rail to achieve control of the clutch pedal. When the door of bus is not completely closed, the driver cannot push down the clutch pedal to drive the bus. Doing that can we achieve automotive driver assistance and further improve driving safety. This paper also discusses the design of the system’s hardware circuitry and procedures.

scholarly journals Elephant trunks form joints to squeeze together small objects

2018 ◽  
Vol 15 (147) ◽  
pp. 20180377
Author(s):  
Jianing Wu ◽  
Yichao Zhao ◽  
Yunshu Zhang ◽  
David Shumate ◽  
Stephanie Braccini Slade ◽  
...  
Keyword(s):  
Granular Materials ◽  
Theoretical Study ◽  
Robotic Manipulators ◽  
Force Sensor ◽  
The Self ◽  
Applied Force ◽  
African Elephants ◽  
Food Items ◽  
Unique Method ◽  
Push Down

Wild African elephants are voracious eaters, consuming 180 g of food per minute. One of their methods for eating at this speed is to sweep food into a pile and then pick it up. In this combined experimental and theoretical study, we elucidate the elephant’s unique method of picking up a pile of food by compressing it with its trunk. To grab the smallest food items, the elephant forms a joint in its trunk, creating a pillar up to 11 cm tall that it uses to push down on food. Using a force sensor, we show the elephant applies greater force to smaller food pieces, in a manner that is required to solidify the particles into a lump solid, as calculated by Weibullian statistics. Elephants increase the height of the pillar with the force required, achieving up to 28% of the applied force using the self-weight of the pillar alone. This work shows that elephants are capable of modulating the force they apply to granular materials, taking advantage of their transition from fluid to solid. In the future, heavy robotic manipulators may also form joints to compress and lift objects together.

scholarly journals CNSL Concentration and Natural Dyes Effects in Formulation of Botanical Pesticide on Sitophilus zeamais and Maize Seed Quality

2020 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
Dian Astriani ◽  
Wafit Dinarto ◽  
Aji Jatmiko
Keyword(s):  
Seed Quality ◽  
Sitophilus Zeamais ◽  
Natural Dyes ◽  
Maize Weevil ◽  
Maize Seeds ◽  
Botanical Pesticide ◽  
Randomized Design ◽  
Efficiency And Effectiveness ◽  
Push Down

Maize is an important commodity in Indonesia and is vulnerable to maize weevil (Sitophilus zeamais) during storage which can cause a 100% yield loss. Chasew Nut Shell Liquid (CNSL) is a botanical pesticide able to control S. zeamais. Increasing CNSL efficiency and effectiveness requires additional adjuvants, such as solvents and dyes. Natural dyes addition is intended to provide seed markers. This study aimed to determine the best CNSL and natural dye formulation to control maize weevil and maintain maize seeds quality during storage. The research was conducted from August to October 2018 at the Agronomy Laboratory, Faculty of Agroindustry, Yogyakarta Mercu Buana University. The research was a single factor consisted of seven treatments with four replications arranged in a completely randomized design (CRD). Treatments were combinations of CNSL concentrations with the addition of natural dyes from suji leaf and teak leaves with one untreated control. The results of the research showed that CNSL as a seed treatment botanical pesticide could cause mortality and suppress S. zeamais populations and maintain the quality of maize seeds during storage for 12 weeks. Treatments with 20% CNSL formulation concentration and the addition of natural dyes both leaf pleomele or teak leaves could cause higher mortality and push down more populations and also could better maintain seed quality than 10 and 0% CNSL formulation concentrations.

Pengaruh Latihan Triceps Push Down Terhadap Kemampuan Servis Atas Bola Voli Siswa SMA Negeri 1 Luwuk.

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Abu Bakar ◽  
Ardiansyah Nur
Keyword(s):  
Post Test ◽  
Push Down

Penelitian ini bertujuan untuk mengetahui pengaruh latihan Triceps Push Down Terhadap Kemampuan Servis Atas Bola Voli Siswa Putra SMA Negeri 1 Luwuk. Desain penelitian yang digunakan adalah penelitian eksperimen dengan rancangan pre-test (tes awal) dan post-test (tes akhir). Lokasi penelitian adalah di SMA Negeri 1 Luwuk. Populasi penelitian berjumlah 12 Siswa Putra SMA Negeri 1 Luwuk dan tehnik pengambilan sampel menggunakan total sampling. Pengumpulan data dalam penelitian menggunakan tehnik tes. Jenis tes adalah tes servis denagn petak-petak sasaran dalam permainan bola voli. Hasil analisa tehnik statistik deskriptif menunjukkan bahwa tes latihan triceps push down diperoleh perhitungan, yaitu thitung sebesar 31,871 dengan ttabel pada taraf signifikan 5% d.b = (N-1) = (12-1) =11 sebesar 2.201 Jadi thitung lebih besar dari pada ttabel  atau 31,871 > 2,201 atau peningkatan antara pre-test (test awal) dan post-test (test akhir) adalah 137 dengan mean deviasi sebanyak 11,42 atau 0,11% atau peningkatanya sebanyak 11%. berdasarkan hal tersebut mennunjukan bahwa ada pengaruh yang signifikan (berarti) latihan triceps push down terhadap kemampuan servis atas permainan bola voli. Kesimpulan dalam penelitian adalah latihan triceps push down dapat meningkatkan kemampuan servis atas dalam permainan bola voli

Standing on formality

2021 ◽  
Vol 22 (10) ◽  
pp. 28-30
Author(s):  
Louise Kay
Keyword(s):  
School Readiness ◽  
Historical Development ◽  
Formal Schooling ◽  
Push Down

In the first of a three part series Louise Kay examines the historical development of the school readiness agenda. With EYFS reforms now seeming to support a further ‘push-down’ of formal schooling into the Reception year, she asks if this is really best for children?

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