With the rapid growth of knowledge bases (KBs) on web, how to take full advantage them becomes increasingly important. Question answering over base (KB-QA) is one promising approaches access substantial knowledge. Meanwhile, as neural network-based (NN-based) methods develop, NN-based KB-QA has already achieved impressive results. However, previous work did not put more emphasis question representation, and converted into a fixed vector regardless its candidate answers. This simple...

GaN high electron mobility transistors (HEMTs) are well suited for high-frequency operation due to their lower on resistance and device capacitance compared with traditional silicon devices. When grown carbide, HEMTs can also achieve very power density the enhanced handling capabilities of substrate. As a result, GaN-on-SiC increasingly popular in radio-frequency amplifiers, applications as switches electronics interest. This paper explores use conventional pulse-width modulated...

Integration is a key step in utilizing advances GaN technologies and enabling efficient switched-mode power conversion at very high frequencies (VHF). This paper addresses design implementation of monolithic half-bridge stages with integrated gate drivers optimized for pulsewidth-modulated (PWM) dc-dc converters operating 100 MHz switching frequency. Three gate-driver circuit topologies are considered integration 0.15-μm depletion-mode GaN-on-SiC process: an active pull-up driver,...

This paper introduces an envelope tracking (ET) power supply for 4G cell phone base stations using EPC eGaN® FETs. An analytical loss model is developed design optimization and verified by a single phase synchronous buck converter the zero-voltage switching (ZVS) technique. The then extended to four phases used 60 W ET with 20 MHz large signal bandwidth (BW). At 25 per-phase frequency, measured static stage efficiency peaks at 96.5% 68 output delivered from 30 V. Experimental results...

Electronic Medical Records (EMRs) have become key components of modern medical care systems. Despite the merits EMRs, many doctors suffer from writing them, which is time-consuming and tedious. We believe that automatically converting dialogues to EMRs can greatly reduce burdens doctors, extracting information an essential step. To this end, we annotate online consultation in a window-sliding style, much easier than sequential labeling annotation. then propose Information Extractor (MIE)...

This paper describes a synchronous buck converter based on GaN-on-SiC integrated circuit, which includes halfbridge power stage, as well modified active pull-up gate driver stage. The takes advantage of depletion-mode device characteristics to achieve fast switching with low consumption. Design principles and results are presented for prototype operating at 100 MHz frequency, delivering up 7 W from 20 V input voltage. Measured power-stage efficiency peaks above 91%, remains 85% over wide...

As the amount of knowledge bases (KBs) grows rapidly, problem question answering (QA) over multiple KBs has drawn more attention. The most significant distinction between KB-QA and single is that former must consider alignments KBs. pipeline strategy first constructs independently, then uses obtained to construct queries. However, alignment construction not a trivial task, introduced noises would be passed on query construction. By contrast, we notice are interactive steps, jointly...

Delai Qiu, Yuanzhe Zhang, Xinwei Feng, Xiangwen Liao, Wenbin Jiang, Yajuan Lyu, Kang Liu, Jun Zhao. Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and 9th International Joint (EMNLP-IJCNLP). 2019.

The scalability problem has been one of the most significant barriers limiting adoption blockchains. Blockchain sharding is a promising approach to this problem. However, mechanism introduces number cross-shard transactions, which are expensive process.This paper focuses on transaction allocation reduce transactions for better scalability. In particular, we systematically formulate and convert it community detection graph. A deterministic fast scheme TxAllo proposed dynamically infer...

In this paper, we propose Neural-Symbolic Collaborative Distillation (NesyCD), a novel knowledge distillation method for learning the complex reasoning abilities of Large Language Models (LLMs, e.g., \textgreater 13B). We argue that tasks are difficult Small (SLMs, $\leq$ 7B), as these demand not only general cognitive but also specialized knowledge, which is often sparse and neural-based SLMs to effectively capture. Therefore, NesyCD distills capabilities in LLMs using different manners.On...

Mitochondria play a crucial role in energy metabolism through oxidative phosphorylation.Organisms living at high altitudes are potentially influenced by oxygen deficits and cold temperatures.The severe environmental conditions can impact on direct selection of mitochondrial DNA.As wide-ranging animal, the domestic horse (Equus caballus) has developed various morphological physiological characteristics for adapting to different altitudes.Thus, this is good species studying adaption molecular...

With the rapid growth of knowledge bases (KBs) on web, how to take full advantage them becomes increasingly important. Knowledge base-based question answering (KB-QA) is one most promising approaches access substantial knowledge. Meantime, as neural network-based (NN-based) methods develop, NN-based KB-QA has already achieved impressive results. However, previous work did not put emphasis representation, and converted into a fixed vector regardless its candidate answers. This simple...

Question Answering over Linked Data (QALD) aims to evaluate a question answering system structured data, the key objective of which is translate questions posed using natural language into queries. This technique can help common users directly access open-structured knowledge on Web and, accordingly, has attracted much attention. To this end, we propose novel method first-order logic. We formulate for resolving ambiguities in main three steps QALD (phrase detection, phrase-tosemantic-item...

Supply modulation is a system efficiency improvement technique in radio-frequency (RF) transmitters, where power converter operating as an envelope tracking (ET) amplifier serves the supply for RF amplifier. This paper presents design of higher-order output filters multi-phase buck ET amplifiers to achieve wide-bandwidth with high using zero-voltage switching (ZVS) technique. The approach verified by experiments on two-phase GaN-based prototypes at 10 MHz and 50 per-phase frequency, having...

This paper presents high efficiency de-de converters based on monolithic normally-off GaN half-bridge power stages with integrated gate drivers. A new driver circuitry is introduced, which enhances both the stage and converter overall efficiency. While using only n-type transistors in process, proposed maintains low quiescent consumption by emulating complementary operation commonly employed CMOS processes. Level shifting accomplished a bootstrap technique, capacitor diode same chip. family...

This paper describes three driver options for integrated half-bridge power stage using depletion-mode GaN-on-SiC 0.15μm RF process: an active pull-up driver, a bootstrapped and modified driver. The approaches are evaluated compared in 5 W, 20 V synchronous Buck converter prototypes operating at 100 MHz switching frequency over wide range of points. Measured efficiency peaks above 91% the designs bootstrap drivers.

With the power architecture transition from a 12 to 48 V rack in modern data centers, there is an increased interest improving conversion efficiency and density. In this paper, we will analyze system optimization for 48–12 non-isolated, fully regulated, intermediate bus converter (IBC) maximize This includes detailed analyses on impact of semiconductor device, gate driver as well exhaustive treatise choice optimal inductor. The final experimental prototype, digitally controlled, 720 W, five...

Question answering over knowledge bases is a challenging task for next-generation search engines. The core of this to understand the meaning questions and translate them into structured language-based queries. Previous research has focused on specific base with constrained domain, but increase in size domain existing bases, fulfilling aim even more challenging. This article introduces mainstream methods question describing typical semantic representation models state-of-the-art systems...

This paper presents a monolithic multilevel converter realized in depletion-mode GaN process and intended to operate as drain supply modulator (DSM) for high efficiency radio-frequency (RF) power amplifiers (PAs). The custom prototype chip includes four-level stage with on-chip integrated gate drivers damping networks designed mitigate effects of parasitics during output voltage level transitions. An optimization algorithm is described maximize the system using voltages minimum switching...

Figure S1 Sequence variation of 37 haplotypes found in the mtDNA CR region Chinese donkeys. Please note: The publisher is not responsible for content or functionality any supporting information supplied by authors. Any queries (other than missing content) should be directed to corresponding author article.