Results 131 to 140 of about 5,221,850 (348)

Experimental study of the effects of secondary air on the emissions and stability of a lean premixed combustor [PDF]

Tests were run using a perforated plate flameholder with a relatively short attached recirculation zone and a vee gutter flameholder with a relatively long attached recirculation zone.
Raman, R. S. V., Roffe, G.
core   +1 more source

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

Complete quantum state selectivity in cold molecular beams using deflection-resistant dark states in a STIRAP configuration

, 2014
One of the main goals of chemical dynamics is the creation of molecular beams composed of a single (vibrational, rotational, and magnetic) quantum state of choice.
Eilam, Asaf, Li, Xuan, Shapiro, Moshe
core   +2 more sources

Thermoelectric Modules Incorporating MgAgSb and Mg3(Sb,Bi)2 Synthesized Using a Melting Method

Advanced Engineering Materials, EarlyView.
A scalable synthesis method for a thermoelectric material of MgAgSb is established. A thermoelectric power module of MgAgSb/Mg3(Sb,Bi)2 is fabricated, showing the conversion efficiency of 7.4% at ΔT = 315 K. The performance is comparable to conventional Bi2Te3 modules when they are operated with an air‐cooled heat exchanger.
Kazuo Nagase, Hironori Ohshima, Kunihiro Kihou, Haruno Kunioka, Ushin Anazawa, Ryosuke Sakagami, Yosuke Goto, Masayuki Murata, Chul‐Ho Lee   +8 more
wiley   +1 more source

Advances in Physiological and Molecular Mechanisms of Cucumber Response to Low-Temperature Stress

Horticulturae
Cucumis sativus L. is a globally important vegetable crop that occupies a significant position in protected agriculture due to its high nutritional value, short cultivation cycle, and considerable economic benefits.
Yixuan Zhang, Huimin He, Mengwen Song, Anjun Chen, Meng Chen, Wenhui Lin, Jiamei Yang, Dujin Luo, Jiabao Ye, Feng Xu   +9 more
doaj   +1 more source

Durability and Smart Condition Assessment of Ultra-High Performance Concrete in Cold Climates [PDF]

, 2016
The goals of this study were to develop ecological ultra-high performance concrete (UHPC) with local materials and supplementary cementitious materials and to evaluate the long-term performance of UHPC in cold climates using effective mechanical test ...
Allena, Srinivas, Qiao, Pizhong, Zhou, Zhidong   +2 more
core  

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Comparative Functional Analysis of COLD1 and GPA1 in Processing Tomatoes: Overexpression of COLD1 Significantly Enhances Seedling Cold Tolerance and Physiological Responses

Horticulturae
Low temperature severely limits tomato (Solanum lycopersicum) production, yet the molecular mechanisms governing cold tolerance—particularly those involving COLD1 and GPA1—remain incompletely defined.
Bo Chen, Qian Li, Yueyue Ma, Xiangxue Yu, Chenjing Li, Ziyu Yang, Rui Ni, Fuyuan Liu, Yongtao Xia, Xinyong Guo, Li Zhang   +10 more
doaj   +1 more source

Phase-slip induced dissipation in an atomic Bose-Hubbard system

, 2008
Phase slips play a primary role in dissipation across a wide spectrum of bosonic systems, from determining the critical velocity of superfluid helium to generating resistance in thin superconducting wires.
A Bezryadin, A Polkovnikov, A Rey, AM Goldman, AT Bollinger, B Wu, B. DeMarco, BLT Plourde, BP Anderson, CD Fertig, D Jaksch, D. McKay, DE McCumber, DM Stamper-Kurn, F Ferlaino, FS Cataliotti, J Mun, JE Mooij, JH Denschlag, JS Langer, JS Langer, K Henderson, L DeSarlo, L Fallani, M Cristiani, M Cristiani, M Greiner, M Greiner, M Tinkham, M White, M. Pasienski, M. White, MP Fisher, MR Matthews, P Phillips, PB Blakie, PC Haljan, T-L Ho, WF Vinen   +38 more
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source