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Search Results: 1 - 10 of 59343 matches for " LIN Hui "
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Micro-Architecture Support for Integrity Measurement on Dynamic Instruction Trace  [PDF]
Hui Lin, Gyungho Lee
Journal of Information Security (JIS) , 2010, DOI: 10.4236/jis.2010.11001
Abstract: Trusted computing allows attesting remote system’s trustworthiness based on the software stack whose integrity has been measured. However, attacker can corrupt system as well as measurement operation. As a result, nearly all integrity measurement mechanism suffers from the fact that what is measured may not be same as what is executed. To solve this problem, a novel integrity measurement called dynamic instruction trace measurement (DiT) is proposed. For DiT, processor’s instruction cache is modified to stores back instructions to memory. Consequently, it is designed as a assistance to existing integrity measurement by including dynamic instructions trace. We have simulated DiT in a full-fledged system emulator with level-1 cache modified. It can successfully update records at the moment the attestation is required. Overhead in terms of circuit area, power consumption, and access time, is less than 3% for most criterions. And system only introduces less than 2% performance overhead in average.
Tunnel thread-drawing therapy in treating patients with horseshoe-shaped low-position perianal abscess: a randomized controlled trial
Hui LIN
Zhong Xi Yi Jie He Xue Bao , 2009,
Abstract: Background: Tunnel thread-drawing therapy is an effective treatment for complex anal fistula, and this therapy may be used for horseshoe-shaped low-position perianal abscess.Objective: To analyze the therapeutic effects of tunnel thread-drawing therapy in treatment of horseshoe-shaped low-position perianal abscess.Design, setting, participants and interventions: A total of 68 patients with horseshoe-shaped low-position perianal abscess were from Department of Anorectal Surgery, Shanghai Tianshan Traditional Chinese Medicine Hospital, and were randomly divided into treatment group and control group. There were 34 cases in each group. The patients in the treatment group received thread-drawing therapy and the patients in the control group received multiple incisions and drainage.Main outcome measures: Lasting time of postoperative pain, healing time of incision, average area of the wound scar, anal function and postoperative recurrence were observed in the two groups. Late postoperative follow-up was from half a year to three years.Results: The lasting time of postoperative pain and healing time of incision in the treatment group were shortened as compared with those in the control group (P<0.01). There was no significant difference in postoperative recurrence rate between the two groups (P>0.05).Conclusion: There is a significant curative effect of tunnel thread-drawing therapy in treatment of horseshoe-shaped low-position perianal abscess.
On Energy-Efficient Node Deployment in Wireless Sensor Networks  [PDF]
Hui WANG, KeZhong LU, XiaoHui LIN
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2008, DOI: 10.4236/ijcns.2008.13029
Abstract: In wireless sensor networks, sensor nodes collect local data and transfer to the base station often relayed by other nodes. If deploying sensor nodes evenly, sensor nodes nearer to the base station will consume more energy and use up their energy faster that reduces system lifetime. By analyzing energy consumption, a density formula of deploying nodes is proposed. The ratio of whole energy of sensor nodes to energy consumption speed of sensor nodes in every area can get consistent if deploying nodes by the density formula, therefore system lifetime is prolonged. Analysis and simulation results show that when communication dominates whole energy consumption and the monitored region is big compared with radio range of sensor node, system lifetime under this scheme can be 3R/(2t) times of that under deploying nodes evenly, where R is radius of the monitored region and t is radio range of sensor node.
On the Scalable Fairness and Efficient Active Queue Management of RED  [PDF]
Hui WANG, Xiao-Hui LIN, Kai-Yu ZHOU, Nin XIE, Hui LI
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2009, DOI: 10.4236/ijcns.2009.21009
Abstract: Internet routers generally see packets from a fast flow more often than a slow flow. This suggests that network fairness may be improved without per-flow information. In this paper, we propose a scheme using Most Recently Used List (MRUL)-a list storing statistics of limited active flows that sorted in most recently seen first mode-to improve the fairness of RED. Based on the list, our proposed scheme jointly considers the identification and punish of the fast and unresponsive fast flows, and the protection of slow flows. Its performance improvements are demonstrated with extensive simulations. Different from the previous proposals, the complexity of our proposed scheme is proportional to the size of the MRUL list but not coupled with the queue buffer size or the number of active flows, so it is scalable and suitable for various routers. In addition, another issue we address in this paper is queue management in RED. Specifically, we replace the linear packet dropping function in RED by a judicially designed nonlinear quadratic function, while original RED remains unchanged. We call this new scheme Nonlinear RED, or NLRED. The underlying idea is that, with the proposed nonlinear packet dropping function, packet dropping becomes gentler than RED at light traffic load but more aggressive at heavy load. As a result, at light traffic load, NLRED encourages the router to operate in a range of average queue sizes rather than a fixed one. When the load is heavy and the average queue size approaches the pre-determined maximum threshold (i.e. the queue size may soon get out of control), NLRED allows more aggressive packet dropping to back off from it. Simulations demonstrate that NLRED achieves a higher and more stable throughput than RED and REM. Since NLRED is fully compatible with RED, we can easily upgrade/replace the existing RED implementations by NLRED.
Surgical correction of ruptured aneurysms of the sinus of Valsalva using on-pump beating-heart technique
Ansheng Mo, Hui Lin
Journal of Cardiothoracic Surgery , 2010, DOI: 10.1186/1749-8090-5-37
Abstract: Thirty-one patients with ruptured aneurysms of the sinus of Valsalva underwent operative corrections using the on-pump beating-heart technique. In patients with fistula diameter less than 1 cm and no aortic regurgitation, the aorta was unclamped throughout cardiopulmonary bypass(CPB) while receiving antegrade heart perfusion. In remainder of patients, retrograde perfusion was used.After intracardiac manipulation was complete and the nasopharyngeal temperature was raised to 36-37°C, the patients were smoothly weaned off CPB. There were no early or late postoperative deaths. All patients were in New York Heart Association functional class I at follow-up (range, 0.5-1 year). Mild-to-moderate aortic valve regurgitation was observed in one patient. No recurrence of the left-to-right shunt from ruptured aneurysms of the sinus of Valsalva was observed.Beating heart on pump allows adequate examination of the aortic lesion under near-physiologic conditions, allows decrease in ischemia-reperfusion injury and potentially decreases the risk of serious or fatal rhythm disturbances. On-pump beating-heart technique for repair of ruptured aneurysm of sinus of Valsalva is feasible and promising. Antegrade heart perfusion is suitable for patients with a fistula diameter <1 cm and no aortic regurgitation, and retrograde perfusion is suitable for the others.Rupture aneurysms of the sinus of Valsalva usually results in abrupt onset of congestive heart failure. Repair of intracardiac teratosis is always performed under cardioplegic arrest. This might cause cardiac impairment leading to low postoperative cardiac output [1-12]. Therefore, myocardial protection is key to the success of these operations. Evidence from experimental and clinical work has demonstrated that on-pump beating-heart surgery reduces further cardiac impairment by maintaining coronary blood flow and avoiding cardioplegia [13-18].Based on our previous reports [19], we have further introduced on-pump beating-heart techni
Observing seasonal variations of sea surface wind speed and significant wave height using TOPEX altimetry
Ge Chen,Hui Lin
Chinese Science Bulletin , 2000, DOI: 10.1007/BF03182913
Abstract: One year of ocean topography experiment (TOPEX) altimeter data are used to study the seasonal variations of global sea surface wind speed and significant wave height. The major wind and wave zones of the world oceans are precisely identified, their seasonal variability and characteristics are quantitatively analyzed, and the diversity of global wind speed seasonality and the variability of significant wave height in response to sea surface wind speed are also revealed.
Sakizaya or Amis? ? a hidden ethnic group in Taiwan?
Shih-hui Lin
Asian Culture and History , 2010, DOI: 10.5539/ach.v2n1p116
Abstract: Amis, one of the Austronesian languages, is spoken by the largest indigenous minority on the island of Taiwan. The population is estimated to be 140,000. The Amis language is spoken mainly in Hualien and Taitung, the eastern part of Taiwan. In 1990s, a Japanese linguist Tsuchida (1989) provided a set of categorization for the Amis language: 1. Sakizaya dialect 2. Northern dialect (Nansi Amis) 3. TavaLong-Vataan dialect 4. Central dialect (Coastal and other Soukuzun Amis) 5. Southern Amis (Puyuma Amis and Hanchan Amis) From the categorization above, Sakizaya belonged to a subcategory of Amis. At the same time, this categorization also reflected that from the “Takobowan Incident” in 1878 the exiled Sakizaya, in order to escape the ethnic cleansing by Qing government, living among the Amis, were simply a subgroup of the larger ethnic group, and so Sakizaya were classified as Amis from then on. The Sakizaya, as a distinct ethnic group, officially did not exist. However, not only historical materials show the term Sakizaya were known to the Spanish and to the Dutch East India Company during the 17th century (Hsu, Liao and Wu, 2001), but also the language data collected in this paper show there are differences between Sakizaya and Amis. (Both Nansi Amis and Sakizaya are spoken mainly in northern Hualien. This paper will further make examples of the phonological, morphological and syntactic differences between Sakizaya and Nansi Amis.) However, it is still difficult to define whether Sakizaya is not a dialect of Amis, but a language. In January of 2007, Sakizaya was officially recognized as Taiwan’s 13th Indigenous Group in Taiwan and one of the most important claims used by the Sakizaya elites in the process of ethnic reconstruction was the language. It seems to me that this ethnic reconstruction is motivated rather by the current Taiwan political environment than the ethnic group itself. It follows that it may occur that the language has been only an instrument to achieve political ends, but - no matter whether true or not - a much more in-depth study is still necessary to determine the status of the language and its relation to other languages, such as Amis, to make a final judgment on the whole process of ethnic reconstruction – Sakizaya case.
CONSTRUCTION SENSITIVITY IN PINGYAO TONE SANDHI
Hui-shan Lin
Taiwan Journal of Linguistics , 2012,
Abstract: This paper investigates tone sandhi phenomena in Pingyao, a Jin dialect spoken in Shanxi province in China. Pingyao tone sandhi is special in that tone sandhi in bi-syllabic strings is construction sensitive, but tone sandhi in tri-syllabic strings is not fully conditioned by construction types. Based on Optimality Theory (OT), this paper proposes analyses for bi-tonal and tri-tonal sandhi in Pingyao. We show that while bi-tonal sandhi can be accounted for by assuming that there are different grammars associated with different construction types, the lack of construction sensitivity in certain tri-syllabic strings suggests that the association between construction types and phonological grammars can be sacrificed to comply with a higher demand. In Pingyao, the higher demand is to avoid having a tri-tonal string with marked tone sandhi domain from being associated with conflicting grammars.
SPECIAL TONAL ALTERNATIONS IN DONGSHI HAKKA REDUPLICATION
Hui-shan Lin
Taiwan Journal of Linguistics , 2011,
Abstract: This paper investigates the special tone sandhi phenomena in the reduplication patterns of AB(C)AB(C), AAA, and AAAA in Dongshi Hakka. These patterns are notable in that they involve tone sandhi patterns that are different from those found in non-reduplications.Within the constraint-based theory of OT, this paper shows that although the tonal alternations observed in the different reduplication patterns are distinct from one another, they are all accompanied with a floating high tone which contributes greatly to the special patterns associated with tone sandhi. In addition to the existence of a floating high tone, AAA reduplication and AAAA reduplication also surface with fixed tonal melodies. It is shown that the fixed tonal melodies in the two patterns of reduplication actually resemble the common phenomena of fixed segmentism in reduplication and are driven by markedness requirements.
Why Firms Award Stock Options -- Examining the Design of Employee Stock Options
Shu-hui Lin
Asian Social Science , 2009, DOI: 10.5539/ass.v5n7p85
Abstract: This study explores whether firms grant employee stock options to motivate and retain employees by examining the determinants of the use of option grants and how firms design vesting and maturity restriction terms. The results show that there is a relationship between the granting of stock options and the retaining of employees and motivating long-term profit-maximizing behavior. This study also finds that a firm sets more rigorous restrictions on exercising options when retaining employees is a high priority for a firm. The results suggest that firms not only grant stock options to provide performance and retention incentives for employees, but also amplify the effects of incentives by fine-tuning the rules governing the exercising of option grants.
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