2,327 research outputs found
Robust indirect adaptive control of the electrohydraulic velocity control systems
No full textA robust version of an indirect adaptive
control scheme with self-excitation capability to
the problem of controlling velocity of the
electrohydraulic servosystems subject to
unmodelled dynamics and load disturbances is
proposed. The scheme contains an effective
gradient least squares estimator using a dead zone
technique and a certainty equivalence based
adaptive controller. A design procedure for
synthesising the adaptive controller is formulated
by using the pole-placement technique, where a
signal is created and fed back to the control law
such that it has self-excitation capability and thus
the stability of the closed-loop control system can
be achieved. A series of simulations are
performed to demonstrate the effectiveness of the
proposed scheme. The results show that the
proposed scheme is fairly robust to the control
systems with uncertainties as well as improved
performance characteristics, compared with that
of the suboptimal PID control scheme with
constant feedback gain and that of the adaptive
model following control scheme
Recognition of familiar individuals in golden hamsters: a new method and functional neuroanatomy
No full textThermal characterization of thermally conductive underfill for a flip-chip package using novel temperature sensing technique
No full textThe thermal characteristics of thermally conductive underfill in flip-chip package was studied. To enhance the thermal conductivity of underfill, the epoxy was mixed with thermally conductive fillers, such as silica (1.5 W/mK), alumina (36 W/mK) or diamond (2000 W/mK). Coefficient of thermal expansion (CTE) was changed by filler and its content and CTE was 28 ppm for 60 wt% silica, 39 ppm for 60 wt% alumina and 24 ppm for 60 wt% diamond. Thermal conductivity was calculated from the measurement of thermal diffusivity, density and specific heat capacity under the various temperature conditions with the various fillers. To investigate thermal characteristics of different underfill, diode temperature sensor array (DTSA) was fabricated, which consisted of 32 x 32 array of diodes (1024 diodes) for temperature measurement and eight heaters for heat source on an 8 mm x 8 mm of silicon surface. The DTSA was packaged by flip-chip packaging method and applied with the same power (0.84 W) for different underfilled packages. Finally, the thermal simulations with ICEPAK matched very well with the measurement. (C) 2006 Elsevier B.V. All rights reserved
Kritik Moral dalam Antologi Puisi Potret Pembangunan Karya W.S. Rendra
No full textPoetry that is enough to provide moral criticisms, one of which is the stroke poems of W.S. Rendra\u27s pen. His poems were enough to give a scathing critique of his time and to the end of his life. W.S. Rendra in writing his poems dared to launch a considerable criticism of the risk. The purpose of this research is so that the resulting literary works do not deviate from things that endanger the existence of the author. The method used in this study is the qualitative method. Data analysis will be done using the analysis of the contents of the document (content analysis document) namely by recording the important content expressed in the document or archive, but also its implied meaning. That W.S. Rendra\u27s poems containing the value of moral criticism include poems titled poor people, nursery rhymes, spy rhymes, corn rhymes, rhymes of an old man under a tree, and rhymes of girls and masters
Experiments on deposition behavior of fine sediment in a reservoir
No full textThe deposition behavior of fine sediment is an important phenomenon, and yet it is unclear to
engineers concerned about reservoir sedimentation. Laboratory experiments were conducted to produce both
quasi-homogeneous flow and a turbidity current region divided by a plunge section. Silica powder (a noncohesive
sediment) and kaolin (a cohesive sediment) were used as the suspended material. Because the effective gravitational
force is the primary driving force for velocity in turbidity currents, the velocity profile was closely
related to the concentration profile. The deposition rate of noncohesive coarser particles exponentially decays
along the flow path. Most of the coarser particles were deposited in the quasi-homogeneous flow region or
within a small distance downstream of the plunge section. The plunge did not carry those coarser particles
further downstream. Deposition in the region of the turbidity current was found mainly by cohesive particles.
Hydraulic sorting exists in the quasi-homogeneous flow region for noncohesive coarser particles, but becomes
less significant in the downstream portion with deposition rates becoming mildly decayed. For fine cohesive
particles, hydraulic sorting for the deposited gradation is not significant
ANALISIS KRITIK SOSIAL DALAM ANTOLOGI PUISI POTRET PEMBANGUNAN KARYA W.S. RENDRA
No full textThe problems raised relate to literary criticism in the poem W.S. Rendra. Poetry is one of the right literature to describe the mind of the author, concerning the social life of the community with its various inequalities, as well as one of the media to convey criticism to individuals and groups. The purpose of this research is to keep literary works away from deviant things that endanger the existence of the author. The method used in this study is qualitative method. The data analysis techniques the authors used in this study are : 1)Read Poetry by W.S. Rendra carefully. 2) then write the value of social criticism contained in the poem. 3) Mark supporting sentences containing social criticism. 4) Analyze social criticism based on data obtained. Social criticism contained in the poem by W.S. Rendra entitled Sajak Orang Miskin, Sajak Joki Tobing untuk Widuri, Sajak Seonggok Jagung, Sajak Pertemuan Mahasiswa, and Sajak Sebatang Lisong contains social criticisms that include the related social life faced by society, the social life gaps experienced by students, and the social lives of the rich and poor people
Sycacantha camarata Feng & Yu 2019
No full text<p> <b> 145. <i>Sycacantha camarata</i> Feng & Yu, 2019 *</b> </p> <p> <i>Sycacantha camarata</i> Feng & Yu, <i>in</i>: Feng <i>et al.</i>, 2019, <i>Zootaxa</i> 4691(3): 205. Type locality: China, Yunnan Province. Holotype (♁): NWU.</p> <p> <b>Distribution outside Thailand:</b> China (Feng <i>et al.</i> 2019).</p> <p> <b>Distribution in Thailand:</b> C–– Nakhon Nayok Prov. (Khao Yai N.P.), N––Chiangmai Prov. (Doi Suthep-Pui N.P.), and NE–– Chaiyaphum Prov. (Chulabhorn Dam and Phu Khieo W.S.) (KKIC).</p> <p> <b>Host plants:</b> Unknown.</p> <p> <b>Remarks:</b> This species is reported from Thailand for the first time. Specimens from Thailand were collected in dry evergreen forest and hill evergreen forest at 750– 1,338 m.</p>Published as part of <i>Muadsub, Sopita & Pinkaew, Nantasak, 2023, The first checklist of the tribe Olethreutini (Lepidoptera: Tortricidae: Olethreutinae) of Thailand, pp. 1-65 in Zootaxa 5349 (1)</i> on page 53, DOI: 10.11646/zootaxa.5349.1.1, <a href="http://zenodo.org/record/8391100">http://zenodo.org/record/8391100</a>
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