Development and evaluation of a bipedal stepping piezoelectric actuator based on stick-slip principle.

In this work, a novel bipedal stepping piezoelectric actuator based on stick-slip principle is proposed. An integrated stator with symmetrically positioned dual driving feet has been developed, characterized by its element analysis. Key structural parameters were optimized, and a prototype was fabricated for a series of experiments.

Adaptive Learning for Dynamic Features and Noisy Labels.

Applying current machine learning algorithms in complex and open environments remains challenging, especially when different changing elements are coupled and the training data is scarce. For example, in the activity recognition task, the motion sensors may change position or fall off due to the intensity of the activity, leading to changes in feature space and finally resulting in label noise. Learning from such a problem where the dynamic features are coupled with noisy labels is crucial but rarely studied, particularly when the noisy samples in new feature space are limited.

Overlapping lockup lymphaticovenous anastomosis: A useful addition to supermicrosurgery.

Background: Lymphaticovenular anastomosis (LVA) is a minimally invasive surgical procedure used to treat lymphedema. This surgical procedure connects the superficial lymphatic vessels to nearby veins to establish lymphatic-venous pathways. One of the most common challenges encountered by lymphatic surgeons when performing LVA is a mismatch in the sizes of the veins and lymphatic vessels, with the effectiveness limited by technical constraints.

Incremental Learning for Simultaneous Augmentation of Feature and Class.

With the emergence of new data collection ways in many dynamic environment applications, the samples are gathered gradually in the accumulated feature spaces. With the incorporation of new type features, it may result in the augmentation of class numbers. For instance, in activity recognition, using the old features during warm-up, we can separate different warm-up exercises.

Learning With Incremental Instances and Features.

In many real-world applications, data may dynamically expand over time in both volume and feature dimensions. Besides, they are often collected in batches (also called blocks). We refer this kind of data whose volume and features increase in blocks as blocky trapezoidal data streams.

[Application of Halo-vest head ring in replantation of total scalp avulsion].

Objective: To investigate the clinical effect of Halo-vest head ring in the treatment of replantation of total scalp avulsion.

Methods: We treated 11 cases of total scalp avulsion with the anastomosis of arteriovenous vessels and Halo-vest head ring from December 2006 to February 2015.

Results: One patient's replanted scalp got necrosis because of serious contusion which was healed without hair growth after free skin graft and dressing.

[Application of free flap pedicled with supracarpal cutaneous branch of ulnar artery in repairing of finger replantation].

Objective: To evaluate clinical application and clinical outcomes of free flap pedicled with supracarpal cutaneous branch of ulnar artery in repairing of finger replantation with skin defect.

Methods: From April 2007 to March 2013,25 patients affected by finger amputation with skin defect were replanted and repaired by free flap pedicled with supracarpal cutaneous branch of ulnar artery. Among them, 18 patients were male and 7 were female,with an average age of 31.

[Analysis of schistosomiasis endemic situation in Jiujiang City, 2011].

Objective: To understand the endemic situation of schistosomiasis in Jiujiang City in 2011, so as to provide the evidence for decision-making of schistosomiasis control.

Methods: The epidemiological data of schistosomiasis in Jiujiang in 2011 were collected and analyzed with the descriptive epidemiology method.

Results: By the end of 2011, there were 34974 cases of schistosomiasis in Jiujiang City, among them there were 2 326 advanced cases (106 cases were newly found in 2011), and no acute cases were found.

[Modified reverse homodigital artery island flap for repair of fingertip defect].

Objective: To investigate the operative method and clinical efficacy of repairing fingertip defect with modified reverse homodigital artery island flap.

Methods: From March 2000 to September 2006, 18 cases (24 fingers) of fingertip defect were treated, including 12 males and 6 females aged 18-53 years (mean 29 years). Defect was caused by crush injuries in 12 cases, by avulsion injury in 3 cases, by twist injury in 2 cases and by incised injury in 1 case.