The introduction of 4-<italic>tert</italic>-butyl-<italic>N</italic>-phenylaniline groups into phenanthridine derivatives is demonstrated as a simple approach to develop solution-processed deep-red iridium complexes. resulting PhOLEDs achieve maximum EQE 5.2% with the emission peak at 682 nm.

BACKGROUND Sex education was introduced early in foreign countries. For example, there is a more systematic sex system abroad, which can better achieve the popularization of education. China's started relatively late, yet are many problems development China; for college students lack knowledge sexuality. AIM To explore perception among medical students. METHODS Students majoring medicine school were selected as survey subjects. Anonymous online questionnaires used to conduct survey, and...

A series of solution-processable small molecules PO1-PO4 were designed and synthesized by linking N-phenylnaphthalen-1-amine groups to a phenyl phosphine oxide core through π-conjugated bridge, their thermal, photophysical, electrochemical properties investigated. The linkage can disrupt the conjugation allows molecular system be extended enable solution processability high glass transition temperatures (159-181 °C) while preserving deep-blue emission. noncoplanar structures resulting from...

We report a transient lateral photoeffect (LPE) in thin metallic Co films deposited on n-type Si substrates with native SiO(2) surfaces. Under the nonuniform irradiation of laser beam, phtovoltage (LPV) shows high sensitivity to position metal film plane. This effect can be interpreted by metal-semiconductor (MS) junction formed between and semiconductor. The LPV depends significantly thickness film. peak value 42.6 mV/mm for Co(2.8mn)-SiO(2)-Si decreases greatly increase thickness. explain...

Abstract Wireless sensor networks have emerged recently as an effective way of monitoring remote or inhospitable physical targets, which usually different quality service (QoS) constraints, i.e., targets may need sensing in terms the number transducers, sampling rate, etc. In this paper, we address problem optimizing network lifetime while capturing those diversified QoS coverage constraints such surveillance networks. We show that belongs to NP‐complete class. define a subset sensors...

An adamantane-based host material, namely, 4-{3-[4-(9H-carbazol-9-yl)phenyl]adamantan-1-yl}benzonitrile (CzCN-Ad), was prepared by linking an electron-donating carbazole unit and electron-accepting benzonitrile moiety through adamantane bridge. In this approach, two functional groups were attached to tetrahedral points of construct "sp(3)" topological configuration. This design strategy endows the material with a high triplet energy 3.03 eV due disruption intramolecular charge transfer....

Infrared imaging technology, as an effective on-site condition monitoring means of equipment, is widely used in the maintenance task insulators. Accurate segmentation insulators infrared images great significance for temperature data acquisition and fault diagnosis. The presence multiple electrical devices image substantially increases difficulty insulator instance segmentation. Moreover, methods based on pixel-level sample annotation consume a lot time resources. Therefore, box-supervised...

Hydrophobicity detection is of great significance to the condition monitoring composite insulators, an important guarantee for safe operation transmission lines. Therefore, this article proposes a hydrophobicity diagnosis method based on improved residual neural network. The consists network, image quality booster, and enhancement module. Among them, network reduces convergence time model by adding Focus algorithm. booster uses deconvolution algorithm effectively solve distortion problem. At...

This study proposes and demonstrates a novel label-free DNA biosensor using high quality optical microcavity functionalized by 3D nanostructure probes. To achieve ultra-low limit biosensing, sensing interface of the hollow-core, thin wall-thickness was self-assembled tetrahedral (DTN) probes with size 17 bp length ∼5.8 nm. High efficiency binding DTN sensor target ssDNA are achieved. Whispering gallery mode (WGM) spectra high-

We present an investigation on the magnetoresistance (MR) properties and lateral photoeffect (LPE) of thin Co films deposited Si substrates with a native oxide layer. A marked transition transport our was observed around 250 K. The thinnest film exhibits largest MR 17.5%. explain magnetotransport by conducting channel switching from upper metallic to inversion Besides MR, large photovoltage which depends in linear way incident light spot position measured also investigated. open-circuit...

optimization under coverage and connectivity requirements for sensor networks where different targets need to be monitored by types of sensors running at possibly sampling rates as well initial energy reserve. The problem is particularly challenging since we consider both connectiv- ity requirement so-called target Q-coverage requirement, i.e., may require sensing quality in terms the number transducers, rate, etc. First formulate this NP-complete lifetime problem, which general allows...

The influence of a nano-nitride-layer (NNL) doped at different interfaces in the structure Cu∕Co∕Cu∕Co∕Cu on magnetoresistance (MR) is investigated. As NNL inner core Co∕Cu∕Co sandwich, an inverse MR observed. This contrasts sharply with that doping two outer between sandwich (Co∕Cu∕Co) and buffer or/and capping layers. result arises from negative spin asymmetry induced by under interfacial circumstances. Moreover, value increases magnitude as temperature decreased room to 4.2K.

With the growing demand for high‐quality Organic Light Emitting Diode (OLED) display, design of screen structure by panel manufacturers needs to consider optical performance optimization carefully, such as Wide Angle Difference (WAD). The users hope that visual color bias OLED display on different angles appears small possible, and no red test will be particularly accepted. is usually composed Array substrates, devices, Thin Film Encapsulation (TFE) layers, touch units, Polarizers top cover...

Abstract Due to the specificity of neutral beam injection (NBI) system, control its actual physical system is achieved by integrated (ICS). The current NBI ICS adopts a distributed design structure balance load, which also mainstream and architecture model around world. However, from practical point view, not perfect. In long run, upgrading intelligence automation capabilities an inevitable choice for future, so it necessary explore ways transform upgrade ICS. At present, Internet Things...

Real estate enterprises play an important role in the economic development of China, which are directly influence economy. Different from other enterprises, real have features high leverage, large capital demand, slow repayment and long investment period. In recent years, central government has implemented a series policies, facing severe financial risks. It’s for to identify prevent As representative China's highly leveraged large-scale company continuously violates "three lines four...

Fe/Ho multilayers were prepared by electron-beam evaporation. A vector vibrating sample magnetometer is adopted to investigate the in-plane and out-plane magnetic properties, an inverted hysteresis loop obtained in direction perpendicular applied field. The shape sensitive angle between film plane of proposal module used explain this mechanism. results magnetoresistance measurement show that have a positive magnetoresistance. Fe layer thickness has marked effect on electronic resistance...

In the recent years, a progressively growing number of computing and communication services have undertaken migration from their conventional media to new unified platform, IP networks. As consequence, business success service providers becomes largely determined by effectiveness management schemes, which require rapid identification problems resolution network-related anomalies. However, this is non-trivial task in heterogeneous enterprise networks due providers' invisibility health...

In order to meet the needs of pulse experiments in different environments, a remote control and visualization system (RCVS) is designed implemented based on conceptual design COntrol, Data Access Communication (CODAC). RCVS works web server adopts website deployment mode LAMP (Linux + Apache MySQL PHP/Python) working B/S architecture. It includes data acquisition module, real-time monitoring access module. first one, avoid deadlock other problems caused by concurrent operations between local...