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121.
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Lu N.C.-C. Bronner G.B. Kitamura K. Scheuerlein R.E. Henkels W.H. Dhong S.H. Katayama Y. Kirihata T. Niijima H. Franch R.L. Wang W. Nishiwaki M. Pesavento F.L. Rajeevakumar T.V. Sakaue Y. Suzuki Y. Iguchi Y. Yano E. 《Solid-State Circuits, IEEE Journal of》1989,24(5):1198-1205
Describes a 1-Mbit high-speed DRAM (HSDRAM), which has a nominal random access time of less than 27 ns and a column access time of 12 ns with address multiplexing. A double-polysilicon double-metal CMOS technology having PMOS arrays inside n-wells was developed with an average 1.3- mu m feature size. The chip has also been fabricated in a 0.9*shrunken version with an area of 67 mm/sup 2/, showing a 22-ns access time. The chip power consumption is lower than 500 mW at 60-ns cycle time. This HSDRAM, which provides SRAM-like speed while retaining DRAM-like density, allows DRAMs to be used in a broad new range of applications.<> 相似文献
123.
Marius Gerrit Gelhausen Tim Feuerbach Ansgar Schubert David William Agar 《化学工程与技术》2018,41(3):618-627
The fabrication of milliliter‐scale test structures for chemical process laboratories with a low‐cost 3D printer operating according to the principle of fused filament fabrication is evaluated. Different polymers such as polypropylene and poly(vinylidene fluoride) were used and fabrication guidelines are provided. Furthermore, reversible and irreversible concepts for connecting 3D‐printed parts to peripherals or to other additively manufactured parts are described. After fabrication, the structures were tested for gas tightness, which was limited without subsequent finishing due to the layer‐wise fabrication process. However, gas tightness up to 600 kPa was attained by using tools like sealing tape. Finally, the developed concepts were extended to permit the insertion of thermoelements or other metallic probes. 相似文献
124.
Mihai V. Putz Doru L. Buzatu Marius C. Mirica Ottorio Ori 《Fullerenes, Nanotubes and Carbon Nanostructures》2018,26(5):303-314
Advances in green nano-technologies is the main field under which the present paper series is firstly envisaged; therefore, advanced, research-progressive nano-science is aimed to shorten the distance from fundamental concepts to applications, devices and their implementations. It however would gather both physics and chemistry fundamental and applicative fields in dealing with solar/black body radiation as well as with new materials based on inorganic-organic hybrids, composites and electron quantum features (excitons, bondons, diffusion, electrical circuits, semiconductors, quantum dots, etc.). Such research is therefore equally highly necessary for both communities (physical engineering and chemical engineering) enlightening the dedicated international forums on quantum-dots based solar cells, as well as for giving further impetus to this new field of photovoltaics by gathering active international scientists in solar energy. The present paper offers a review on the progresses regarding the application of defective graphene and other defect-doped carbon nanostructures in the construction of solar cells devices towards introducing the semiconductor based graphenes. Competitiveness and eco-ecological aspects of such projects are also considered in a resumed scientific and innovative research. 相似文献
125.
Chehida Salim Baouya Abdelhakim Bensalem Saddek Bozga Marius 《Software Quality Journal》2022,30(2):367-388
Software Quality Journal - Analyzing the behavior of sensors is becoming one of the key challenges due to their increasing use for decision making in IoT systems. The paper proposes an approach for... 相似文献
126.
127.
Leonardo Scarabelli Marius Schumacher Dorleta Jimenez de Aberasturi Jan‐Philip Merkl Malou Henriksen‐Lacey Thais Milagres de Oliveira Marcus Janschel Christian Schmidtke Sara Bals Horst Weller Luis M. Liz‐Marzn 《Advanced functional materials》2019,29(14)
The implementation of plasmonic nanoparticles in vivo remains hindered by important limitations such as biocompatibility, solubility in biological fluids, and physiological stability. A general and versatile protocol is presented, based on seeded emulsion polymerization, for the controlled encapsulation of gold and silver nanoparticles. This procedure enables the encapsulation of single nanoparticles as well as nanoparticle clusters inside a protecting polymer shell. Specifically, the efficient coating of nanoparticles of both metals is demonstrated, with final dimensions ranging between 50 and 200 nm, i.e., sizes of interest for bio‐applications. Such hybrid nanocomposites display extraordinary stability in high ionic strength and oxidizing environments, along with high cellular uptake, and low cytotoxicity. Overall, the prepared nanostructures are promising candidates for plasmonic applications under biologically relevant conditions. 相似文献
128.
ABSTRACTIn this work, we study the numerical approximation of the solutions of a class of abstract parabolic time optimal control problems with unbounded control operator. Our main results assert that, provided that the target is a closed ball centered at the origin and of positive radius, the optimal time and the optimal controls of the approximate time optimal problems converge (in appropriate norms) to the optimal time and to the optimal controls of the original problem. In order to prove our main theorem, we provide a nonsmooth data error estimate for abstract parabolic systems. 相似文献
129.
Alexios Lekidis Emmanouela Stachtiari Panagiotis Katsaros Marius Bozga Christos K. Georgiadis 《Software》2018,48(6):1167-1194
The design of software for networked systems with nodes running an Internet of things operating system faces important challenges due to the heterogeneity of interacting things and the constraints stemming from the often limited amount of available resources. In this context, it is hard to build confidence that a design solution fulfills the application's requirements. This paper introduces a design flow for web service applications of the representational state transfer style that is based on a formal modeling language, the behaviour, interaction, priority (BIP) component framework. The proposed flow applies the principles of separation of concerns in a component‐based design process that supports the modular design and reuse of model artifacts. The BIP tools for state‐space exploration allow verifying qualitative properties for service responsiveness, ie, the timely handling of events. Moreover, essential quantitative properties are validated through statistical model checking of a stochastic BIP model. All properties are preserved in actual implementation by ensuring that the deployed code is consistent with the validated model. We illustrate the design of a representational state transfer sense‐compute‐control application for a Wireless Personal Area Network architecture with nodes running the Contiki operating system. The results validate qualitative and quantitative properties for the system and include the study of error behaviours. 相似文献
130.
Together with bit commitment, Oblivious Transfer is a very useful cryptographic primitive with important applications, most notably in secure multiparty computations. It has been long known that secure Quantum Oblivious Transfer can be achieved from a secure implementation of Quantum Bit Commitment. Unfortunately, it is also well known that unconditionally secure Quantum Bit Commitment is impossible, so building a secure Oblivious Transfer protocol on top of Quantum Bit Commitment is ruled out. In this paper, we propose a relatively simple quantum protocol for Oblivious Transfer which does not require qubit storage, does not rely on bit commitment as a primitive and is easily implementable with current technology, if the two actors are honest. The protocol is proven to be secure against any individual measurements and entanglement-based attacks. Any cheating attempt trying to speculate collective measurements would be considerably difficult to put in practice, even in the near future. Furthermore, the number of qubits used in our scheme (embodied as photons in a physical realization of the protocol) acts as a security parameter, making it increasingly hard to cheat. 相似文献