International Business Machines Corporation

Huawei Technologies Co., Limited

East China University of Science and Technology

Covidien LP

O2micro International Limited

Shanghai Jiaotong University

Yong Guo

Yan Xu

Jie Tian

Bruce McNutt

Jun Tao Li

Beth Ann Peterson

Juan A Coronado

Yang Liu

Sangeetha Seshadri

Lawrence Yiumchee Chiu

Paul Henri Muench

Chao G Li

Tao Tang

Yanqin Wang

Kaisar R Hossain

Hui Yu

Xiaodong Li

Xiaohui Liu

Yong Zhang

Zhentao Lu

Ying Ren

Yingdong Ma

Zhaojun He

Zhenhai Zhang

Wanjun Guo

Ge Fan

Yaxuan Jing

Yanjiao Hui

Xiao Meng Leon Huang

Sheau Chuen Shirley Her

Hongwen Yao

Ning Yan

Shuang Xiang

Disclosed is a method for efficiently synthesizing primary amines, which comprises using carbonyl compounds or alcohol compounds as reaction substrate, liquid ammonia or alcohol solutions of ammonia as nitrogen source, and hydrogen as hydrogen source, and reacting in reaction medium catalyzed by a cobalt-based catalyst to obtain the primary amines. Due to high catalytic activity, the method can realize the reductive amination of carbonyl compounds and the hydrogen-borrowing amination of alcohol compounds at low temperatures in a short time to obtain the primary amines with high yield, and is applicable to a wide range of substrates. The obtained primary amines can be used as raw materials with high extra value for producing polymers, medicines, dyes and surfactants. Further, the cobalt-based catalyst has a good industrial application prospect because it is magnetic which can facilitate separation and recycling of the catalyst. Moreover, the inexpensive cobalt-based catalyst can significantly reduce industrialization cost.

Method for efficiently synthesizing primary amines

A sheath for covering an endoscope includes a latch assembly, an elongate body extending distally from the latch assembly, and a sheath tip extending distally from the elongate body. The latch assembly includes a main housing and a guide housing, the guide housing movable relative to the main housing to increase a longitudinal length of the latch assembly. The sheath tip has a front face including first and second windows disposed within respective first and second openings defined in the front face. The first and second windows are configured to correspond with respective lighting and imaging windows of an endoscope.

Sheath assembly for a rigid endoscope

A driver upgrade method and a device are provided, to simplify a driver upgrade process and improve upgrade efficiency. The driver upgrade method includes: receiving, by a MANO, first information from a VNF during an upgrade of the VNF, the first information indicating version information of the VNF after the upgrade; determining, by the MANO, that an NFVI is not upgraded; and sending, by the MANO, second information to the VNF, the second information indicating to the VNF not to upgrade a VF driver installed in the VNF.

Driver upgrade method and device

In one embodiment, a method for managing data includes collecting workload information for a data storage device in a data storage system over a period of time. A peak workload of the data storage device for the period of time is determined. A maximum workload threshold for the data storage device in the data storage system over the period of time is also determined. Movement of additional workload to the device in the data storage system is prevented during a subsequent period of time when the data storage device is predicted to be at about the peak workload for the data storage device in response to a determination that adding the additional workload would cause the workload of the device to exceed the maximum workload threshold.

Peak cyclical workload-based storage management in a multi-tier storage environment

Disclosed is a method for preparing aromatic hydrocarbons by hydrocracking a polymer containing aromatic rings, which includes reacting the polymer fragment with hydrogen under the action of a catalyst at a temperature of no more than 350&#xb0; C.; separating a reaction product to obtain the aromatic hydrocarbons. The catalyst comprises a carrier and an active ingredient supported on the carrier, the active ingredient is at least one selected from Ru, Rh, Pt, Pd, Fe, Ni, Cu and Co, the carrier is at least one selected from metal oxide, phosphate, molecular sieve, SiOand sulfonated carbon, the metal oxide is at least one selected from AlO, NbO, NbO&#x2014;AlO, NbO&#x2014;SiO, TiO, ZrO, CeOand MoO; the phosphate is at least one selected from NbOPOand ZrOPO; and the molecule sieve is at least one selected from Nb-SBA-15, Nafion, H-ZSM-5, H-Beta and H-Y.

Method for preparing aromatic hydrocarbons by hydrocracking polymer containing aromatic ring

A multi-beam polling based transmission method and apparatus, and a communications device and an electronic device readable storage medium based on the method are disclosed. An access point AP broadcasts a beacon message, where the beacon message is used to indicate duration of a beacon period; and sends a data packet that includes channel use duration to a station STA, where the channel use duration is used to indicate a target slot at which the AP communicates with the STA within a duration range of the beacon period, so that the AP can communicate with the STA at the target slot.

Multi-beam polling based transmission method and communications device

In one embodiment, a system includes a processor and logic integrated with and/or executable by the processor, the logic being configured to cause the processor to: collect, by the processor, workload information for a computing/storage device for a present time period and one or more previous time periods; determine, by the processor, a maximum workload parameter for the present time period and the one or more previous time periods; determine, by the processor, a maximum workload threshold that corresponds to the maximum workload parameter; compute, by the processor, a difference between the maximum workload threshold and the maximum workload parameter; and determine, by the processor, an amount of workload to move to the computing/storage device based on the difference. Other methods and computer program products are presented in additional embodiments.

Various embodiments for managing data by a processor in a multi-tiered computing storage environment. Based on Input/Output (I/O) statistics, a ranking mechanism is applied to differentiate data between at least a cache rank and a Solid State Drive (SSD) rank. The ranking mechanism migrates data between the cache rank and SSD rank such that storage space in the cache rank is reserved for those of the plurality of data workload types having a greater adverse effect on a storage performance characteristic if stored in the SSD rank than if those workload types were stored in the cache rank.

Storage in tiered environment with cache collaboration

Monitoring the division of input/output (I/O) loading within a storage system is provided where the storage system includes one or more storage devices and one or more ranks, each rank including a plurality of extents. The I/O loading of individual extents is estimated for each of the one or more ranks of the storage system by determining an average disk utilization in a rank, measuring a total heat for all extents in the rank, and based on the determined average disk utilization in the rank and the measured total heat for all extents in the rank, calculating a contribution of each extent to the utilization of the rank.

Estimation of performance utilization of a storage device

Various embodiments for managing data by a processor in a multi-tiered computing storage environment. Input/Output (I/O) statistics are examined from each of cache and device drivers in the computing storage environment. Based on the I/O statistics, a ranking mechanism is applied to differentiate data between at least a cache rank and a Solid State Drive (SSD) rank. The ranking mechanism migrates data between the cache rank and SSD rank such that storage space in the cache rank is reserved for those of the plurality of data workload types having a greater adverse effect on a storage performance characteristic if stored in the SSD rank than if those workload types were stored in the cache rank.

A method, for migrating newly allocated data into a second storage tier, includes receiving a request to store a data item. The method includes allocating an extent to a first storage tier to store the new data item. The method includes determining whether an extent is newly allocated on the first storage tier. The method includes migrating, by avoiding a learning phase, the newly allocated extent to the second storage tier from the first storage tier.

Migration of newly allocated data to a storage tier

Aspects of the present disclosure are directed toward a system for managing the migration of extents on tiered systems. The system can include receiving a space reservation request for one or more requested extents on a first storage tier of a storage system. The system can also include releasing a first storage tier reserve space that includes one or more first tier reserved extents in response to the first storage tier reserve space being insufficient for the reservation request. The system can also include migrating the one or more requested extents to the first storage tier reserve space.

Management of extent migration on tiered storage

Aspects of the present disclosure are directed toward a computer program product for managing the migration of extents on tiered systems. The computer program product can be configured to receive a space reservation request for one or more requested extents on a first storage tier of a storage system. The computer program product can also be configured to release a first storage tier reserve space that includes one or more first tier reserved extents in response to the first storage tier reserve space being insufficient for the reservation request. The computer program product can also be configured to migrate the one or more requested extents to the first storage tier reserve space.

Provided are a computer program product, system, and method for modeling workload information for a primary storage and a secondary storage. A determination is made of: a first type and second type of Input/Output (I/O) operations with respect to extents configured in the primary storage; a cumulative I/O workload for the primary storage based on a first type and a second type of I/O operations at different cumulative storage amounts of the primary storage indicating a concentration of the I/O workload on the primary storage; and cumulative I/O workload for the secondary storage based on the first type and the second type of I/O operations at different storage amounts indicating a concentration of the I/O workload of the first type of I/O operations on the secondary storage. A performance gap is determined based on the cumulative I/O workloads for the primary and secondary storages at one of the storage amounts.

Growing community of inventors

Shanghai, China

Yong Guo