transportation/trucking/railroad company list - PETIT FORESTIER

本文探讨了多个软件与营销领域的公司,包括Extole、Akeneo等计算机软件企业,以及BartonF.Graf、BBDOWorldwide等营销与广告公司。深入分析了这些企业在各自领域的创新与应用。

Extole | computer software

LevelUp | food & beverages

Archaio | computer software

Talisma | computer software

Aspose | computer software

Sparkcentral | computer software

Neosperience | information technology and services

Browntape Technologies | computer software

Akeneo | computer software

Shopistan.pk | internet

Unbxd Inc | computer software

Zycus | computer software

Barton F. Graf | marketing and advertising

LDC | marketing and advertising

Tree | marketing and advertising

Friendship | marketing and advertising

AMPFY | marketing and advertising

F/Nazca Saatchi & Saatchi | marketing and advertising

BBDO Worldwide | marketing and advertising

GO | marketing and advertising

LOL | marketing and advertising

CB | marketing and advertising

xwise.com | marketing and advertising

180LA | marketing and advertising

BBDO San Francisco | marketing and advertising

SCI | marketing and advertising

72andSunny | marketing and advertising

Imago | marketing and advertising

NEWAD | marketing and advertising

AdWatch | marketing and advertising

HINODE microfranquias | marketing and advertising

XXS Amsterdam | marketing and advertising

HDE | marketing and advertising

BMD | marketing and advertising

Cannot Say - Compliance wont let me. | marketing and advertising

Sydney | marketing and advertising

Cheil Communications | marketing and advertising

Dentsu (Thailand) Ltd. | marketing and advertising

Mix | marketing and advertising

asdfghjkl | marketing and advertising

NBP | marketing and advertising

Tag Worldwide (a DHL Company) | marketing and advertising

Diva Dubai Model Agency and Events | marketing and advertising

Spirit | marketing and advertising

Creative Consultant | marketing and advertising

B & C Group | marketing and advertising

East | marketing and advertising

ACF | marketing and advertising

(various) | marketing and advertising

CDL Câmara de Dirigentes Lojistas | marketing and advertising

SPU | marketing and advertising

Jones | marketing and advertising

*** Formation of a Company *** | marketing and advertising

Devoteam | information technology and services

Medyasoft | computer software

I.T. by Design | information technology and services

Terminal Investment Limited | maritime

DP World | logistics and supply chain

Direct Rail Services | transportation/trucking/railroad

Rápido 900 Transportes | transportation/trucking/railroad

Renovias Concessionária S/A | transportation/trucking/railroad

Ratp El Djazaïr | transportation/trucking/railroad

TMB | transportation/trucking/railroad

Veolia Transport | transportation/trucking/railroad

Asyaport Liman A.Ş. | transportation/trucking/railroad

Road and Bridge Research Institute | transportation/trucking/railroad

KORAIL | transportation/trucking/railroad

OBA | transportation/trucking/railroad

SCHENKER-JOYAU | transportation/trucking/railroad

Andhra Pradesh State Road Transport Corporation(APSRTC) | transportation/trucking/railroad

Empresa de Transportes Covre | transportation/trucking/railroad

UGOFE S.A. Línea Roca | transportation/trucking/railroad

Nobina Norge AS | transportation/trucking/railroad

Nórdica Veículos | transportation/trucking/railroad

Metrorail | transportation/trucking/railroad

Groupe Charles André | transportation/trucking/railroad

Wabtec Control Systems | transportation/trucking/railroad

Canadian Transportation Agency | transportation/trucking/railroad

TRANSPORTER | transportation/trucking/railroad

Not in work | transportation/trucking/railroad

Contrans Group Inc. | transportation/trucking/railroad

Companhia Paulista de Trens Metropolitanos | transportation/trucking/railroad

Transport Services Limited | transportation/trucking/railroad

Sydney Trains | transportation/trucking/railroad

AMERICA LATINA LOGISTICA | transportation/trucking/railroad

GeoPost Group | transportation/trucking/railroad

CFI | transportation/trucking/railroad

SACA | transportation/trucking/railroad

Pat Salmon & Sons, Inc. | transportation/trucking/railroad

ComfortDelGro | transportation/trucking/railroad

MAXON Lift Corp | transportation/trucking/railroad

Total Terminals International, LLC | transportation/trucking/railroad

Green Cargo | transportation/trucking/railroad

CK Technologies, LLC | transportation/trucking/railroad

SunLine Transit Agency | transportation/trucking/railroad

Nextran Truck Centers | transportation/trucking/railroad

Metrorex | transportation/trucking/railroad

Convoy Inc | logistics and supply chain

MTR Tunnelbanan | transportation/trucking/railroad

PETIT FORESTIER | transportation/trucking/railroad

【评估多目标跟踪方法】9个高度敏捷目标在编队中的轨迹和测量研究(Matlab代码实现)内容概要:本文围绕“评估多目标跟踪方法”,重点研究9个高度敏捷目标在编队飞行中的轨迹生成与测量过程,并提供完整的Matlab代码实现。文中详细模拟了目标的动态行为、运动约束及编队结构,通过仿真获取目标的状态信息与观测数据,用于验证和比较不同多目标跟踪算法的性能。研究内容涵盖轨迹建模、噪声处理、传感器测量模拟以及数据可视化等关键技术环节,旨在为雷达、无人机编队、自动驾驶等领域的多目标跟踪系统提供可复现的测试基准。; 适合人群:具备一定Matlab编程基础,从事控制工程、自动化、航空航天、智能交通或人工智能等相关领域的研究生、科研人员及工程技术人员。; 使用场景及目标:①用于多目标跟踪算法(如卡尔曼滤波、粒子滤波、GM-CPHD等)的性能评估与对比实验;②作为无人机编队、空中交通监控等应用场景下的轨迹仿真与传感器数据分析的教学与研究平台;③支持对高度机动目标在复杂编队下的可观测性与跟踪精度进行深入分析。; 阅读建议:建议读者结合提供的Matlab代码进行实践操作,重点关注轨迹生成逻辑与测量模型构建部分,可通过修改目标数量、运动参数或噪声水平来拓展实验场景,进一步提升对多目标跟踪系统设计与评估的理解。
### 三级标题:LEFT JOIN后使用DISTINCT仍然返回多条记录的原因及解决方法 在 SQL 查询中,即使使用了 `DISTINCT` 关键字,如果 `LEFT JOIN` 的右表中存在多条匹配记录,左表的某一行数据仍可能在结果集中重复出现[^4]。这种现象的根本原因是 `LEFT JOIN` 的工作原理:当左表的一条记录与右表的多条记录匹配时,SQL 会为每一条右表的匹配记录生成一行结果,从而导致左表的记录在结果集中多次出现。 例如,用户在查询中使用了 `DISTINCT nsi.new_trucking_orderid`,但仍然返回了多条记录,这说明 `new_trucking_orderid` 对应的记录在 `LEFT JOIN` 的其他表中存在多个匹配项,特别是 `new_out_delivery` 表中可能存在多个 `new_freight` 值对应同一个 `new_trucking_orderid` 的情况。此时,`DISTINCT` 仅对 `new_trucking_orderid` 本身进行去重,而不会影响其他字段的组合导致的重复行[^1]。 为解决此类问题,可以采取以下几种方法: 1. **使用子查询限制右表的数据** 在 `LEFT JOIN` 时,可以先对右表进行聚合或限制,确保每个左表记录只匹配一条右表记录。例如,使用子查询获取每个 `new_trucking_orderid` 对应的最新或最小的 `new_freight` 值: ```sql SELECT nsi.new_trucking_orderid, nto.new_logistics_fee, nto.new_total_package_number, nsl.new_logistic_companyidname AS logistics_company, del.new_freight FROM new_shipping_list nsl LEFT JOIN new_shipping_item nsi ON nsl.new_shipping_listid = nsi.new_shipping_listid LEFT JOIN new_trucking_order nto ON nsi.new_trucking_orderid = nto.new_trucking_orderid LEFT JOIN ( SELECT new_out_deliveryid, new_freight FROM new_out_delivery ) del ON del.new_out_deliveryid = nsi.new_out_deliveryid WHERE nsl.new_sign_status IN (20, 30) ``` 通过这种方式,可以避免因右表数据重复而导致左表记录重复的问题[^2]。 2. **使用 GROUP BY 聚合结果** 如果需要对 `new_freight` 字段进行汇总,可以使用 `GROUP BY` 和聚合函数(如 `MAX`、`MIN`、`AVG`)来确保每条 `new_trucking_orderid` 只返回一行: ```sql SELECT nsi.new_trucking_orderid, MAX(nto.new_logistics_fee) AS new_logistics_fee, MAX(nto.new_total_package_number) AS new_total_package_number, MAX(nsl.new_logistic_companyidname) AS logistics_company, MAX(del.new_freight) AS new_freight FROM new_shipping_list nsl LEFT JOIN new_shipping_item nsi ON nsl.new_shipping_listid = nsi.new_shipping_listid LEFT JOIN new_trucking_order nto ON nsi.new_trucking_orderid = nto.new_trucking_orderid LEFT JOIN new_out_delivery del ON del.new_out_deliveryid = nsi.new_out_deliveryid WHERE nsl.new_sign_status IN (20, 30) GROUP BY nsi.new_trucking_orderid ``` 此方法通过分组和聚合函数确保每条 `new_trucking_orderid` 只返回一行数据,从而避免重复记录。 3. **使用窗口函数进行去重** 如果需要保留 `new_freight` 的具体值而不是聚合值,可以使用窗口函数(如 `ROW_NUMBER()`)为每条记录分配行号,并仅选择每个 `new_trucking_orderid` 的第一条记录: ```sql SELECT * FROM ( SELECT nsi.new_trucking_orderid, nto.new_logistics_fee, nto.new_total_package_number, nsl.new_logistic_companyidname AS logistics_company, del.new_freight, ROW_NUMBER() OVER (PARTITION BY nsi.new_trucking_orderid ORDER BY del.new_freight DESC) AS rn FROM new_shipping_list nsl LEFT JOIN new_shipping_item nsi ON nsl.new_shipping_listid = nsi.new_shipping_listid LEFT JOIN new_trucking_order nto ON nsi.new_trucking_orderid = nto.new_trucking_orderid LEFT JOIN new_out_delivery del ON del.new_out_deliveryid = nsi.new_out_deliveryid WHERE nsl.new_sign_status IN (20, 30) ) sub WHERE rn = 1 ``` 通过 `ROW_NUMBER()` 函数,可以为每个 `new_trucking_orderid` 的记录分配一个行号,并筛选出每组的第一条记录,从而确保结果集中每条 `new_trucking_orderid` 只返回一行数据[^3]。 ###
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