Zhe Yang

• National Cheng Kung University

This paper established a radiation temperature measurement system with its optical path interfered with particulates and investigated the influence of particulate interference on single-color and two-color radiation thermometry qualitatively and quantitatively. The investigation revealed some experimental phenomena never reported before, and theore...

This study confronts a demanding fault diagnosis task where no sensor signals from the target faults can be utilized for model training. Considering semantic descriptions of the target (or unseen) faults may be known in advance, zero-shot learning (ZSL) is employed to solve the zero-sample fault diagnosis task. Most of existing ZSL methods designed...

Bearing condition is a non-negligible part of mechanical equipment health monitoring. Most of the existing bearing fault diagnosis methods are based on the premise that all data classes are known and lack the capability of incremental diagnosis of fault modes. However, in engineering practice, the initial monitoring data only provide normal conditi...

A multidomain variance-learnable prototypical network (MVPN) is proposed to learn transferable knowledge from a large-scale dataset containing sufficient samples of multiple faults for few-shot diagnosis of novel faults (i.e., disjoint with fault types in the large-scale dataset). Signal characterizations in time, frequency, and time–frequency doma...

In many industrial applications, only healthy condition monitoring data is available for rotating machines that are newly put into operation or have not met the onset of degradation, i.e. the occurrence of incipient failures, after a long-time run. Fault detection based on only the healthy condition data can be a challenging one-class classificatio...

Effective fault diagnosis is important to ensure the reliability, safety, and efficiency of industrial robots. This article proposes a simple yet effective data acquisition strategy based on transmission mechanism analysis, using only one attitude sensor mounted on an end effector or an output component to monitor the attitude of all transmission c...

The P2-type and O3-type are the most common types of layered oxides. The P2-type is possessed with better air stability but lower capacity while the O3-type possesses higher capacity but poorer kinetic performance. Considering the complementarity of two phases, a series of P2/O3–Na0.80Li0.13Ni0.20FexMn0.67-xO2 (x = 0.05, 0.10, 0.15) are designed an...

Few-shot fault diagnosis aims to detect novel faults with only a few labeled samples in each category. Most of the few-shot learning (FSL)–based fault diagnosis models use meta-learning frameworks because of their effectiveness and simplicity. However, these models often fail to be generalized in unseen working conditions that exhibit domain shifts...

Lithium-rich materials possess the ultra-high specific capacity, but the redox of oxygen is not completely reversible, resulting in voltage attenuation and structural instability. A stepwise co-precipitation method is used for the first time in this paper to achieve the control of the two-phase distribution through controlling the distribution of t...

An analytical radiometric thermometry model applied to predict quantitatively and correct for gaseous emission and absorption effects on spectral-band and ratio thermometer readings is presented. This model using numerical radiative transfer simulations takes into account the augmentation and attenuation of radiation in gas medium. The temperature...

Anionic charge compensation creates conditions for realizing high capacity and energy density of Li-ion batteries cathode materials. However, the issues of voltage hysteresis, capacity attenuation, and structure transformation caused by the labile anionic redox are still difficult to solve fundamentally. The superstructure formed by a Li-Mn ordered...

In industrial applications, different abnormal conditions of a machine or a machinery fleet typically occur sequentially instead of becoming initially known. Therefore, one of the most challenging tasks for the machinery fault diagnosis is to incrementally classify unknown abnormal patterns. For this reason, an incremental novelty identification (I...

Two-dimensional Ti3C2Tx exhibits outstanding rate property and cycle performance in lithium-ion capacitors (LICs) due to its unique layered structure, excellent electronic conductivity, and high specific surface area. However, like graphene, Ti3C2Tx restacks during electrochemical cycling due to hydrogen bonding or van der Waals forces, leading to...

P2‐Na2/3Ni1/3Mn2/3O2 is a promising cathode material for sodium‐ion batteries (SIBs), but it faces the rapid capacity decay due to P2‐O2 phase transition. The superlattice is a stable structure, compositing it can effectively eliminate the P2‐O2 phase transition. Based on superlattice of NaLi1/3Mn2/3O2, a series of xNaLi1/3Mn2/3O2 ⋅ (1‐x)Na2/3Ni1/3...

Lithium-rich manganese-based cathode materials are expected to promote the commercialization of lithium-ion batteries to a new stage by virtue of their ultrahigh specific capacity and energy density advantages. However, they are still restricted by complex phase transitions and electrochemical performance degradation caused by labile anion charge c...

Fault diagnosis is an indispensable basis for the collaborative maintenance in prognostic and health management. Most of existing data-driven fault diagnosis approaches are designed in the framework of supervised learning, which requires a large number of labelled samples. In this paper, a novel self-training semi-supervised deep learning (SSDL) ap...

Effective application of fault diagnosis models requires that new fault types can be recognized rapidly after they occur few times, even only one time. To this end, a self-adaptation graph attention network via meta-learning (SGANM) is proposed. Specifically, based on a collected large-scale labeled dataset containing abundant disjoint categories (...

Through the total cyclization of polyacrylonitrile, a bifunctional surface and abundant oxygen defects were constructed on the lithium-rich cathode, leading to an excellent electrochemical performance.

Nowadays copper matrix composites are of keen interest due to their increasing demand in thermal packaging systems and the electronic industry. In this study, Cu matrix composites are fabricated by using different fillers (graphite, reduced graphene oxide and graphene) by adopting the simple flake powder metallurgy method. SEM and XRD were done to...

Supervised fault diagnosis typically assumes that all the types of machinery failures are known. However, in practice unknown types of defect, i.e., novelties, may occur, whose detection is a challenging task. In this paper, a novel fault diagnostic method is developed for both diagnostics and detection of novelties. To this end, a sparse autoencod...

The Mg–6Zn wt.% (MZ-T6) magnesium (Mg) alloy was fabricated after heat treatment (783 K for 6 h and aging at 453 K for 24 h) of an extruded MZ Mg alloy. Later, the alloy was subjected to cross pre-compression along with different directions and strains and obtained MZ-1 and MZ-2Mg specimens. The MZ-1 was pre-compressed along with ED and then TD, wh...

The military and aerospace industries require lightweight and high stiffness materials, which can reduce the CO2 emission and total cost of the project. Magnesium alloys are one of the best replacements of heavy-weight materials and can be employed to withstand the high strain rate shock wave impact under stringent environments. The resistance agai...

Anion energy storage provides the possibility to achieve higher specific capacity in lithium-ion battery cathode materials, but the problems of capacity attenuation, voltage degradation, and inconsistent redox behavior are still inevitable. In this paper, a novel O2-type manganese-based layered cathode material Lix[Li0.2Mn0.8]O2 with a ribbon super...

Supervised deep learning methods have been widely applied in the field of machinery fault diagnosis in recent years, which learns quite well the mapping relationship between the monitoring data and the corresponding labels. In many practical industrial applications, however, the monitoring data are unlabeled due to the requirement of expert knowled...

The strong interfacial bonding is the basic requirement for the metal-graphene composites for higher thermo-mechanical properties. In the present work, a novel metal tantalum is introduced in the metal-graphene composites prepared by (ball-milling + molecular level mixing) followed by hot press sintering. SEM, TEM and HRTEM are observed to check th...

The magnesium alloys are the next-generation lightweight metal materials; however, the production of the complex shape components of thermo-mechanical processed magnesium alloys is very limited in comparison to their die-casted counterparts. Both high strain rate and low-temperature processing are required to save time and cost for the project. Uni...

Temperature measurements are ubiquitous in combustion systems. However, the accuracy of surface temperature measurements of critical components operating in a harsh combustion gases environment is greatly affected by reflection and combustion gas radiation. In this paper, an analytical two-color pyrometry model was used to quantitatively analyze the...

As a cathode material for lithium-ion batteries with the highest capacity (>280mAh g–1) in the intercalated lithium storage mode, lithium-rich layered oxides still suffer from capacity decay, voltage attenuation and hysteresis caused by the unstable O evolution. In this work, Os surface doping has been applied to Li1.2Ni0.13Co0.13Mn0.54O2 for struc...

Novelty detection is a challenging task for the machinery fault diagnosis. A novel fault diagnostic method is developed for dealing with not only diagnosing the known type of defect, but also detecting novelties, i.e. the occurrence of new types of defects which have never been recorded. To this end, a sparse autoencoder-based multi-head Deep Neura...

Lattice oxygen undergoes redox reaction to achieve high specific capacity of the material in lithium-rich cathode oxides. However, irreversible oxygen loss causes a change in the crystal structure, and the cations migrate in the transition metal layer, resulting in a rearrangement of the electronic structure and ultimately a severe voltage decay. H...

A gentle method is used to treat the precursor to induce the doping of SO42-and Ni2+. The doped SO42- induce the formation of oxygen vacancies and defects, which are beneficial to inhibit the loss of O2-, stabilize the structure and ameliorate the voltage decay, the doped Ni2+ increases the degree of lithium nickel mixing and significantly raises t...

The layered lithium‐rich manganese‐based cathode material (Li1.2Mn0.54Co0.13Ni0.13) has the significant advantage of high specific capacity, but this material also suffers serious defects, including severe capacity attenuation and voltage attenuation during the cycle. At present, most researchers have been working to optimize the cycle performance...

Lithium-rich layered cathode oxides attract enormous attention due to their superior capacity, high voltage and environmentally friendliness. However, it is considerable that they suffer from serious capacity fade, voltage attenuation and phase transition deriving from inevitable oxygen evolution. In this work, polyanions are induced on the surface...

Lithium-rich layered cathode material Li1·2Ni0·13Co0·13Mn0·54O2 has attracted extensive attention owing to high specific capacity and energy density from its distinctive anionic redox chemistry. However, the material suffers from low Coulombic efficiency, serious capacity attenuation, severe voltage decay which can be ascribed to the irreversible o...

As a promising cathode material, although the lithium-rich cathode material Li1.2Mn0.54Ni0.13Co0.13O2 has a high specific capacity, it suffers from capacity decay and discharge voltage decay during cycling. In this work, the specific capacity and discharge voltage of Li1.2Mn0.54Ni0.13Co0.13O2 are stabilized by surface functionalized LiCeO2 coating....

The advantages and disadvantages of the lithium-rich cathode material are outstanding. The advantages are large specific capacity, and the disadvantages are low conductivity and fast capacity attenuation. After more than a decade of research, it should be said that these two problems have been better resolved. But a trickier problem is that, as the...

Lithium-rich layered oxides exhibit a superior specific capacity more than 280 mAh g⁻¹ in the range of 2.0–4.8 V. Meanwhile, capacity attenuation and voltage decay are also caused by such a wide voltage range. The structure evolution and electrochemical properties of materials at different voltage regulation systems have been studied. Complex phase...

This work reports the surface coating of Li1.2Mn0.54Ni0.13Co0.13O2 cathode material with nano-CeO2 by a versatile hydrothermal method. Thus, obtained nano-CeO2-coated Li1.2Mn0.54Ni0.13Co0.13O2 material was characterized by XRD, SEM, and TEM. It is revealed that the synthesized nano-CeO2 material has rich oxygen vacancies, and a spinel-phase layer i...

As a promising positive electrode material for high energy lithium-ion batteries, Li-rich manganese based cathode materials (LNCM) have a capacity over 250 mA h g ⁻¹ but suffer from capacity fade and voltage decay during electrochemical cycling. Surface coating and bulk doping can improve the performance of LNCM from different aspects but both of t...

Li-rich layered cathode material (Li1.2Ni0.13Co0.13Mn0.54O2) is subjected to severe irreversible oxygen evolution for the first cycle, barren rate performance, capacity fading and voltage decay despite the ultrahigh specific capacity over 250 mAh g–1. In this paper, MoOx was grown on the surface of lithium-rich material (LLO) via in situ hydrolysis...

The modification of lithium-rich layered cathode materials has been widely studied by surface coating, doping and chemical treatment for lithium-ion batteries. However, controlled synthesis of advanced electrode materials with high...

This study was designed to mainly evaluate the anti-infective effects of perioperative probiotic treatment in patients receiving confined colorectal cancer (CRC) respective surgery. From November 2011 to September 2012, a total of 60 patients diagnosed with CRC were randomly assigned to receive probiotic (n = 30) or placebo (n = 30) treatment. The...

Long non-coding RNAs (lncRNAs) are emerging as key molecules in cancers, yet their potential molecular mechanisms are not well understood. The objective of this study is to examine the expression and functions of lncRNAs in the development of colorectal cancer (CRC). LncRNA expression profiling of CRC, adenoma and normal colorectal tissues was perf...

Local advanced gastric carcinoma has a very poor prognosis. When a T4 gastric carcinoma has invaded the surrounding tissues and organs, curative resection is unlikely. We present here a case of a 63-year-old woman with a T4 unresectable gastric adenocarcinoma. She underwent two 3-week cycles of docetaxel/cisplatin/fluorouracil chemotherapy, followe...

Although epithelial barrier dysfunction in the gut has been extensively reported in ulcerative colitis (UC), the pathogenesis of this disease is not completely understood. In the present study, we investigated the role of miR-21 in regulating intestinal epithelial barrier function in UC. Colonic biopsies were obtained from 30 chronic UC patients an...

MicroRNAs (miRNAs) are essential for regulating normal embryonic development and carcinogenesis. Here we report that miR-17-5p, an oncofoetal miRNA, is a key regulator of colorectal cancer progression. We show that miR-17-5p is an oncogenic miRNA that regulates tumorigenesis and progression by targeting the gene encoding P130 and subsequently activ...

Neuroendocrine carcinoma (NEC) of the pancreas is rare. We report the case of a 34-year-old man with pancreatic NEC with soft tissue metastasis. The patient presented with right upper abdominal discomfort. Computed tomography revealed a low-density heterogeneous mass in the tail and body of the pancreas that encroached on the greater curvature of t...

Colorectal cancer (CRC) is a major cause of cancer mortality worldwide. There is an urgent need to search for specific and sensitive biomarkers for early diagnosis of CRC. We carried out a comprehensive systematic review of published studies that compared the miRNA expression profiles between CRC tissue and paired neighboring noncancerous colorecta...

Epidemiological studies have investigated the association between HER2 codon 655 polymorphism and breast cancer susceptibility. However, the results are still inconclusive. To obtain a more precise estimation of the relationship, this meta-analysis was performed. A total of 22 studies including 9,209 cases and 10,132 controls were collected. The st...

Introduction Embryonic origin of cancer Similarity in cell invasive behaviours Similarity in epigenetic regulation Similarity in gene expression Similarity in protein profiling Similarity in other biological behaviours Conclusion With the recent substantial progress in developmental biology and cancer biology, the similarities between early embryo...

The aim of this study was to compare the outcome of the overall complication, mortality, and recurrence rate between laparoscopic resection and open surgery for colorectal cancer. We searched the Medline, Embase, and Cochrane Library and systematically reviewed the randomized controlled trials by comparing the overall complication, mortality, and r...

Conflicting data have been published as to the possible association between polymorphism in codon 72 of the TP53 tumor suppressor gene and the risk of developing breast cancer. In order to address this question, we carried out a meta-analysis of 21 studies of and this polymorphism and breast cancer risk, which collectively included 12,601 cases and...

To evaluate the value and inadequacy in clinical practice of the concept of gastric high-grade intraepithelial neoplasia (HIN). Forty-five cases with gastric HIN diagnosed by the esophagogastroduodenoscopy (EGD) biopsy were treated from 2003 to 2009. The clinical and histopathological data were analyzed retrospectively. Radical surgeries were succe...

The aim of this study was to evaluate the efficacy and toxicity of docetaxel (TAX), cisplatin (CDDP), and fluorouracil (5-FU) plus leucovorin (CF) as the neoadjuvant chemotherapy (NACT) regimens in the treatment of nonresectable advanced gastric cancer. Twelve patients with nonresectable advanced gastric cancer were treated with NACT regimens consi...

Heterotopic pancreas is defined as pancreatic tissue found outside the usual anatomical location of the pancreas. It is often an incidental finding and can be found at different sites in the gastrointestinal tract. It may become clinically evident when complicated by pathological changes such as inflammation, bleeding, obstruction, and malignant tr...

The prognosis of local advanced gastric carcinoma is very poor. We evaluated the impact on survival and the effects induced by the triple combination docetaxel-cisplatin-fluorouracil (DCF) as neoadjuvant chemotherapy in 24 T4 stage gastric tumor patients. They received 2-3 cycles DCF chemotherapy, followed by radical gastric resection. Tumor downst...

To summarize our experience with the application of self-expanding metallic stent (SEMS) in the management of acute left-sided colorectal malignant obstruction. A retrospective chart review of all patients undergoing placement of SEMS between April 2000 and January 2004 was performed. Insertion of SEMS was attempted in 26 patients under fluoroscopi...