14,249 research outputs found
Influence of Doping Concentrations in White Organic Light-emitting Diodes based on Phosphorescent Iridium Complexes
AbstractPhosphorescent white organic light-emitting diodes (PhWOLEDs) based on blue (Firpic) and yellow [(t-bt)2Ir(acac)] phosphorescent emitters with various doping concentration were reported. A PhWOLED with high performance characteristics has been obtained when the doping concentration for Firpic and (t-bt) 2Ir (acac) is 8 wt% and at 6 wt%, respectively. The Commission Internationale del’Eclairage (CIE) coordinates of the optimal PhWOLED is (0.333, 0.416) at 10V. The high performance of the optimized PhWOLED is attributed to effective host-guest energy transfer and efficient exciton recombination combining with suppressed exciton-quenching process in the emitting layers
Custodial Symmetry Violation in Scalar Extensions of the Standard Model
The new measurement of the W boson mass from the CDF collaboration shows a
significant tension with the Standard Model prediction, which evidences
violation of custodial symmetry in the scalar sector. We study the scalar
extensions of the Standard Model, which can be categorized into two classes,
scalar sector with custodial symmetry (Georgi-Machacek model and its
generalizations) and scalar sector without custodial symmetry, and explore how
these extensions fit to the electroweak precision data and the CDF new .
The favored oblique parameters are coming from either the large mass splitting
in the multiplet via the loop contribution or the large vacuum expectation
value which breaks custodial symmetry at the tree level. In particular, we find
that GeV new particles are allowed in the scalar extension
scenarios.Comment: 24 pages, 4 figure
Multi-party quantum private comparison of size relationship with two third parties based on d-dimensional Bell states
In this paper, we put forward a multi-party quantum private comparison (MQPC)
protocol with two semi-honest third parties (TPs) by adopting d-dimensional
Bell states, which can judge the size relationship of private integers from
more than two users within one execution of protocol. Each TP is permitted to
misbehave on her own but cannot collude with others. In the proposed MQPC
protocol, TPs are only required to apply d-dimensional single-particle
measurements rather than d-dimensional Bell state measurements. There are no
quantum entanglement swapping and unitary operations required in the proposed
MQPC protocol. The security analysis validates that the proposed MQPC protocol
can resist both the outside attacks and the participant attacks. The proposed
MQPC protocol is adaptive for the case that users want to compare the size
relationship of their private integers under the control of two supervisors.
Furthermore, the proposed MQPC protocol can be used in the strange user
environment, because there are not any communication and pre-shared key between
each pair of users.Comment: 15 pages, 1 figure, 1 tabl
Improving multimodal named entity recognition via entity span detection with unified multimodal transformer
SPeC: A Soft Prompt-Based Calibration on Mitigating Performance Variability in Clinical Notes Summarization
Electronic health records (EHRs) store an extensive array of patient
information, encompassing medical histories, diagnoses, treatments, and test
outcomes. These records are crucial for enabling healthcare providers to make
well-informed decisions regarding patient care. Summarizing clinical notes
further assists healthcare professionals in pinpointing potential health risks
and making better-informed decisions. This process contributes to reducing
errors and enhancing patient outcomes by ensuring providers have access to the
most pertinent and current patient data. Recent research has shown that
incorporating prompts with large language models (LLMs) substantially boosts
the efficacy of summarization tasks. However, we show that this approach also
leads to increased output variance, resulting in notably divergent outputs even
when prompts share similar meanings. To tackle this challenge, we introduce a
model-agnostic Soft Prompt-Based Calibration (SPeC) pipeline that employs soft
prompts to diminish variance while preserving the advantages of prompt-based
summarization. Experimental findings on multiple clinical note tasks and LLMs
indicate that our method not only bolsters performance but also effectively
curbs variance for various LLMs, providing a more uniform and dependable
solution for summarizing vital medical information
Research on Submarine Straight-Line Track Control Underwater Based on Nonlinear Proportion Differential
Planar microfluidics - liquid handling without walls
The miniaturization and integration of electronic circuitry has not only made
the enormous increase in performance of semiconductor devices possible but also
spawned a myriad of new products and applications ranging from a cellular phone
to a personal computer. Similarly, the miniaturization and integration of
chemical and biological processes will revolutionize life sciences. Drug design
and diagnostics in the genomic era require reliable and cost effective high
throughput technologies which can be integrated and allow for a massive
parallelization. Microfluidics is the core technology to realize such
miniaturized laboratories with feature sizes on a submillimeter scale. Here, we
report on a novel microfluidic technology meeting the basic requirements for a
microfluidic processor analogous to those of its electronic counterpart: Cost
effective production, modular design, high speed, scalability and
programmability
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