Zobrazeno 1 - 10
of 161
pro vyhledávání: '"J. J. Stephens"'
Autor:
D. R. Frear, J. J. Stephens
Publikováno v:
Metallurgical and Materials Transactions A. 30:1301-1313
The compressive creep and stress-strain behavior of the near-eutectic 60Sn-40Pb solder alloy has been investigated over the temperature range of −55 °C to 125 °C. The total primary creep strain is a strong function of stress and temperature: at l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cfb44f25b17e6dbc789d5e17d292688
https://doi.org/10.1007/s11661-999-0279-2
https://doi.org/10.1007/s11661-999-0279-2
Autor:
F. A. Greulich, J. J. Stephens
Publikováno v:
Metallurgical and Materials Transactions A. 26:1471-1482
The Cu-Au-Ni braze alloys are used for metal/ceramic brazes in electronic assemblies because of their good wetting characteristics and low vapor pressure. We have studied the tensile creep properties of annealed 62Cu-35Au-3Ni alloy over the temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd7b04239c8df5a2f8f98c1731415789
https://doi.org/10.1007/bf02647598
https://doi.org/10.1007/bf02647598
Publikováno v:
Applied optics. 14(9)
Impulse response approximations are presented for selected refractive indices to illustrate the variety of pulse returns for dielectric spheres. High frequency analogs for the rear axial and glory rays are verified by comparison with isolated returns
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0fa4f8d30ab08a9dec6d6d1f81a479b
https://pubmed.ncbi.nlm.nih.gov/20154979
https://pubmed.ncbi.nlm.nih.gov/20154979
Autor:
Peter S. Ray, J. J. Stephens
Publikováno v:
Applied optics. 14(8)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21e722aed203a797aa24851e4900ddef
https://pubmed.ncbi.nlm.nih.gov/20154914
https://pubmed.ncbi.nlm.nih.gov/20154914
Publikováno v:
Applied optics. 14(10)
The backscattered component of the normalized Poynting vector impulse response is evaluated at selected times on a plane normal to the direction of pulse propagation and in the near field of a dielectric sphere. The computations for spheres with refr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b301b2cb09276020e4279cce631f421c
https://pubmed.ncbi.nlm.nih.gov/20155047
https://pubmed.ncbi.nlm.nih.gov/20155047
Publikováno v:
Metallurgical Transactions A. 21:2829-2837
Interdiffusion and reactions occurring at high temperatures between refractory metals (Nb and Ta) and ceramic materials (SiC and A12O3) have been investigated. Diffusion couples were fabricated by depositing Nb and Ta films of ~l-μm thickness onto p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82a85fe845dcf35693d02cb971ab45bf
https://doi.org/10.1007/bf02647204
https://doi.org/10.1007/bf02647204
Publikováno v:
On Advances in Robot Kinematics ISBN: 9789048166220
For reaching tasks, the human kinesthetic sensory system uses a trunk-fixed anterior/posterior (a-p) axis as a frame of reference in the horizontal plane. Hand motion is aligned more precisely to the a-p axis than to visually presented axes, and prec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b94c50438c72f7bb7474227a9dad536
https://doi.org/10.1007/978-1-4020-2249-4_18
https://doi.org/10.1007/978-1-4020-2249-4_18
Publikováno v:
Microscopy and Microanalysis. 5:806-807
Spectrum imaging, where a complete spectrum is acquired at each pixel in an image, is potentially a very powerful technique for the characterization of materials. The primary challenge to overcome is to extract all of the relevant information from wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c71661730e935bf633da6094823c34ce
https://doi.org/10.1017/s1431927600017359
https://doi.org/10.1017/s1431927600017359
Autor:
J. J. Stephens
Publikováno v:
JOM. 42:22-23
Nb, the lowest-density refractory metal, is of great interest for aircraft propulsion applications whose service temperatures are of the order of 1100-1150 C; the major impediment to such applications has thus far been the difficulty of fostering inh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3278390a5a429165d8792392409e3a69
https://doi.org/10.1007/bf03221047
https://doi.org/10.1007/bf03221047
Autor:
Eugene A. Mueller, K. K. Wagner, J. J. Stephens, W. C. Bumgarner, Peter S. Ray, Kenneth W. Johnson
Publikováno v:
Journal of Applied Meteorology. 17:1201-1212
The advantages of three or more radars is illustrated in terms of extended areal coverage, error variance reduction and mitigation of poor sampling effects of divergence fields near the ground. Errors in the horizontal and vertical particle motion fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::684b669d1a031ca8bd8758f1b81e571a
https://doi.org/10.1175/1520-0450(1978)017<1201:tdooac>2.0.co
https://doi.org/10.1175/1520-0450(1978)017<1201:tdooac>2.0.co