搜索结果: 1-15 共查到“理学 feedback”相关记录139条 . 查询时间(0.062 秒)
南京农业大学农学院《Plant Communications》发表国家大豆改良中心盖钧镒院士和许冬清教授团队“The GmSTF1/2-GmBBX4 negative feedback loop acts downstream of blue light photoreceptors to regulate isoflavonoid biosynthesis in soybean”（图）
大豆改良 盖钧镒 许冬清 生物合成
2023/10/28
次生代谢产物异黄酮是一类主要在豆科植物中合成的多酚类物质。异黄酮不仅利于豆科植物应答生物和非生物胁迫、诱导根瘤形成等，而且对人体具有重要的保健和药用价值，比如预防和治疗癌症、心脑血管疾病和骨质疏松等。大豆是工业化生产异黄酮的重要来源，主要含有12种异黄酮物质及其衍生物。根据其化学结构的差异，可将其分为游离型苷元（aglycone）和结合型糖苷（glycoside）两大类，其中结合型糖苷占异黄酮总量...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Cross-linked Peptide Identification Using a Protein-feedback Method
蛋白质 反馈法 交联肽
2023/11/7
Improving the sensitivity of protein-protein interaction detection and protein structure probing is a principal challenge in cross-linking mass spectrometry (XL-MS) data analysis. In this talk, we pro...
Weight centile crossing in infancy: correlations between successive months show evidence of growth feedback and an infant-child growth transition
growth weight centile crossing infancy feedback
2018/12/14
Background: Early rapid weight gain is associated with later overweight, which implies that weight centile crossing tracks over time.
Weight centile crossing in infancy: correlations between successive months show evidence of growth feedback and an infant-child growth transition
growth weight centile crossing infancy feedback
2018/12/18
Background: Early rapid weight gain is associated with later overweight, which implies that weight centile crossing tracks over time.
Negative feedback loops help maintain function of mutated proteins
Negative feedback loops maintain function mutated proteins
2016/7/4
Negative feedback is a universal control mechanism that lets a system’s output throttle its input. If an engine revs up, negative feedback tapers its power source. But if the engine slows down, it re-...
Variation of the feedback coefficient with R12 and the geographic latitude in 1-h ahead forecast of f0 F2
forecast feedback critical frequency
2015/9/25
The «prediction» and «forecast» of the critical frequency of the F 2 layer (f0 F2 ) is an important issue for frequency planning in short wave radio communications. In this context...
Subharmonic functions and performance bounds on linear time-invariant feedback systems
Harmonic function linear the performance of the single output system a linear control system the harmonic function
2015/8/13
In this paper we study multi-input multi-output (MIMO) linear time-invariant (LTI) control systems. We show that some well known constraints on the performance of single-input single-output (SISO) lin...
Multivariable feedback control of semiconductor wafer temperature
Multivariate semiconductor chip temperature temperature control chip rapid heat treatment semiconductor chips sensors
2015/8/12
The authors consider the problem of wafer temperature control in rapid thermal processing (RTP) of semiconductor wafers. They present a novel approach to the analysis of candidate sensor configuration...
Design of stablizing state feedback for delay systems via convex optimization
A linear system functional convex optimization techniques
2015/8/12
For linear systems with delays, we define a new class of Lyapunov-like functionals that may be used to prove stability. We also show how we may design a stabilizing (delayed) state feedback for delay ...
The Feedback Capacity of Degraded Broadcast Channels
Feedback Capacity Degraded Broadcast Channels
2015/8/12
e fact that the capacity region of the discrete memoryless physically degraded broadcast channel is not increased by feedback is establisked.
Entropy and random feedback
Convex function matrix spectrum application linear controller design
2015/8/11
The gamma-entropy is a convex function of matrices that is closely related to the Frobenius and spectral (maximum singular value) norms. It comes up in several applications such as central H-infinity ...
Piecewise-affine state feedback for piecewise-affine slab systems using convex optimization
Piecewise-affine systems State feedback Convex optimization Ellipsoids Lyapunov function
2015/8/10
This paper shows that Lyapunov-based state feedback controller synthesis for piecewise-affine (PWA) slab systems can be cast as an optimization problem subject to a set of linear matrix inequalities (...
Analysis and synthesis of state-feedback controllers with timing jitter
Constant linear linear system status the convex quadratic performance the linear matrix inequality (lmi) and lyapunov function
2015/8/10
We consider a continuous-time linear system with sampled constant linear state-feedback control and a convex quadratic performance measure. The sample times, however, are subject to variation within s...
Resolving the Impacts and Feedback of Ocean Optics on Upper Ocean Ecology
Resolving the Impacts and Feedback Ocean Optics Upper Ocean Ecology
2015/8/4
The abundance and fecundity of life on this planet is directly related to the energy supplied by the sun. The pyramid of life starts with the absorption of a fraction of this energy, followed by its c...
We consider the problem of constructing decentralized control systems. We formulate this problem as one of minimizing the closed-loop norm of a feedback system subject to constraints on the controller...