نتایج جستجو برای: long pn
تعداد نتایج: 785300 فیلتر نتایج به سال:
A Personal Node (PN) is a small, wallet-sized device that integrates people into the Internet. A PN incorporates wireless communication, limited user I/O, and local environmental telemetry to catalyze the coordination of other smart space and network devices for the user's benefit. By themselves smart spaces are not aware of the people in them and people are not be aware of what is in a smart s...
This paper analyzes boosting in unscaled versions of ROC spaces, also referred to as PN spaces. A minor revision to AdaBoost’s reweighting strategy is analyzed, which allows to reformulate it in terms of stratification, and to visualize the boosting process in nested PN spaces as known from divide-and-conquer rule learning. The analyzed confidence-rated algorithm is proven to take more advantag...
Petri Nets formalism requires standardisation to facilitate the work of researchers in this field and to enable the data exchange between different Petri Nets tools through a common format. Following this, a three-part International Standard (ISO/IEC 15909) has been developed. Part 1 is devoted to terms and definitions for Place/Transition Nets and High-Level Petri Nets. It is now completed (pu...
We introduce a modification to the standard spherical harmonic closure used with linear kinetic equations of particle transport. While the standard closure is known to produce negative particle concentrations, the modification corrects this defect by requiring that the ansatz used to the close the equations is itself a non-negative function. We impose this requirement via explicit constraints i...
Overview of Modeling, Scheduling, Planning, and Control Using Petri Net Representation and AI Search
This paper reviews the research work on Petri nets representations and the AI based search approaches. It coves the following contents: 1) Petri nets (PN) and PN modeling of manufacturing systems; 2) Scheduling using PN and AI search and PN based scheduling of flexible manufacturing systems using hybrid heuristic search; 3) PN based planning; 4) Closed-loop control using PN; 5) Rule-based PN an...
In the early stages of an infection, pathogenic bacteria use long fibrous structures known as pili as adhesive anchors for attachment to the host cells. These structures also play key roles in colony and biofilm formation. In all those processes, pili must withstand large mechanical forces. The pili of the nasty gram-positive human pathogen Streptococcus pyogenes are assembled as single, microm...
Perturbation of the homeostasis between proteases and their inhibitors has been associated with lesion-induced or degenerative neuronal changes. Protease nexin-1 (PN-1), a secreted serine protease inhibitor, is constitutively expressed in distinct neuronal cell populations of the adult CNS. In an earlier study we showed that transgenic mice with ectopic or increased expression of PN-1 in postna...
For a path Pn of order n, Chartrand et al. [3] have given an upper bound for radio k-chromatic number when 1 ≤ k ≤ n−1. Liu and Zhu [7] have determined the exact value of radio (n−1)-chromatic number of Pn, namely radio number, rn(Pn), when n ≥ 3. Khennoufa and Togni [5] have given the exact value of radio (n − 2)-chromatic number of Pn, namely antipodal number, ac(Pn), when n ≥ 5. Kola and Pan...
OBJECTIVE To determine whether glutamine (GLN)-supplemented parenteral nutrition (PN) improves clinical outcomes in surgical intensive care unit (SICU) patients. SUMMARY BACKGROUND DATA GLN requirements may increase with critical illness. GLN-supplemented PN may improve clinical outcomes in SICU patients. METHODS A parallel-group, multicenter, double-blind, randomized, controlled clinical t...
تحقیق در ساختارهای پوسته و گوشته فوقانی در فلات ایران بسیار محدود بوده و در این زمینه کار اندکی صورت گرفته است. در این مقاله یک هدف اصلی مد نظر قرار دارد و آن به تصویر کشیدن سرعت های pn و sn در زیر فلات ایران، به منظور آزمایش کردن مدل های سه بعدی گوشته و به دست آوردن روشی جدید و آزمودن آن برای به دست آوردن تصحیح زمان های سیر pn و sn که متشابه سه بعدی منحنی های زمان سیر مدل های یک بعدی اند. روش ...
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